carbon-lang/toolchain/check/testdata/class/virtual_modifiers.carbon

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/virtual_modifiers.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/virtual_modifiers.carbon

// --- modifiers.carbon

package Modifiers;

base class Base {
  virtual fn H[self: Self]();
}

abstract class Abstract {
  abstract fn J[self: Self]();

  virtual fn K[self: Self]();
}

// --- override_import.carbon

library "[[@TEST_NAME]]";

import Modifiers;

class Derived {
  extend base: Modifiers.Base;
  impl fn H[self: Self]();
}

fn Use() {
  var d: Derived = {.base = {}};
}

// --- todo_fail_later_base.carbon

library "[[@TEST_NAME]]";

import Modifiers;

base class Derived {
  virtual fn F[self: Self]();
  extend base: Modifiers.Base;
}

// --- init.carbon

library "[[@TEST_NAME]]";

import Modifiers;

fn F() {
  var v: Modifiers.Base = {};
}

// --- impl_abstract.carbon

library "[[@TEST_NAME]]";

abstract class A1 {
  virtual fn F[self: Self]();
}

abstract class A2 {
  extend base: A1;
  impl fn F[self: Self]();
}

// --- impl_base.carbon

library "[[@TEST_NAME]]";

base class B1 {
  virtual fn F[self: Self]();
}

base class B2 {
  extend base: B1;
  impl fn F[self: Self]();
}

class C {
  extend base: B2;
  impl fn F[self: Self]();
}

fn Use() {
  var b1: B1 = {};
  var b2: B2 = {.base = {}};
  var c: C = {.base = {.base = {}}};
}

// --- fail_modifiers.carbon

library "[[@TEST_NAME]]";

class C {
  // CHECK:STDERR: fail_modifiers.carbon:[[@LINE+4]]:3: error: impl without base class [ImplWithoutBase]
  // CHECK:STDERR:   impl fn F[self: Self]();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  impl fn F[self: Self]();
}

// --- init_members.carbon

library "[[@TEST_NAME]]";

base class Base {
  var m1: i32;
  var m2: i32;

  virtual fn F[self: Self]();
}

fn F() {
  var i: i32 = 3;
  var b1: Base = {.m2 = i, .m1 = i};
  var b2: Base = {.m2 = 3, .m1 = 5};

  b1.m2 = 4;
}

// --- fail_impl_without_base_declaration.carbon

library "[[@TEST_NAME]]";

base class Base {
}

class Derived {
  extend base: Base;
  // CHECK:STDERR: fail_impl_without_base_declaration.carbon:[[@LINE+4]]:3: error: impl without compatible virtual in base class [ImplWithoutVirtualInBase]
  // CHECK:STDERR:   impl fn F[self: Self]();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  impl fn F[self: Self]();
}

// --- abstract_impl.carbon

library "[[@TEST_NAME]]";

abstract class AbstractBase {
  abstract fn F[self: Self]();
}

abstract class AbstractIntermediate {
  extend base: AbstractBase;
}

class Derived {
  extend base: AbstractIntermediate;
  impl fn F[self: Self]();
}

// --- virtual_impl.carbon

library "[[@TEST_NAME]]";

base class VirtualBase {
  virtual fn F[self: Self]();
}

base class VirtualIntermediate {
  extend base: VirtualBase;
}

class Derived {
  extend base: VirtualIntermediate;
  impl fn F[self: Self]();
}

// --- fail_impl_mismatch.carbon

library "[[@TEST_NAME]]";

base class Base {
  virtual fn F[self: Self]();
}

class Derived {
  extend base: Base;
  // CHECK:STDERR: fail_impl_mismatch.carbon:[[@LINE+7]]:3: error: redeclaration differs because of parameter count of 1 [RedeclParamCountDiffers]
  // CHECK:STDERR:   impl fn F[self: Self](v: i32);
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR: fail_impl_mismatch.carbon:[[@LINE-8]]:3: note: previously declared with parameter count of 0 [RedeclParamCountPrevious]
  // CHECK:STDERR:   virtual fn F[self: Self]();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  impl fn F[self: Self](v: i32);
}

// --- fail_todo_impl_conversion.carbon

library "[[@TEST_NAME]]";

class T1 {
}

class T2 {
}

impl T2 as Core.ImplicitAs(T1) {
  fn Convert[self: Self]() -> T1 {
    return {};
  }
}

base class Base {
  virtual fn F[self: Self]() -> T1;
}

class Derived {
  extend base: Base;
  // CHECK:STDERR: fail_todo_impl_conversion.carbon:[[@LINE+7]]:3: error: function redeclaration differs because return type is `T2` [FunctionRedeclReturnTypeDiffers]
  // CHECK:STDERR:   impl fn F[self: Self]() -> T2;
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR: fail_todo_impl_conversion.carbon:[[@LINE-8]]:3: note: previously declared with return type `T1` [FunctionRedeclReturnTypePrevious]
  // CHECK:STDERR:   virtual fn F[self: Self]() -> T1;
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  impl fn F[self: Self]() -> T2;
}

// --- fail_generic_virtual_decl.carbon

library "[[@TEST_NAME]]";

// CHECK:STDERR: fail_generic_virtual_decl.carbon:[[@LINE+3]]:1: error: use of undefined generic function [MissingGenericFunctionDefinition]
// CHECK:STDERR: base class Base(T:! type) {
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~
base class Base(T:! type) {
  // CHECK:STDERR: fail_generic_virtual_decl.carbon:[[@LINE+4]]:3: note: generic function declared here [MissingGenericFunctionDefinitionHere]
  // CHECK:STDERR:   virtual fn F[self: Self]();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  virtual fn F[self: Self]();
}


// --- impl_generic_base.carbon

library "[[@TEST_NAME]]";

class T1 {
}

base class Base(T:! type) {
  virtual fn F[self: Self](t: T) { }
}

class Derived {
  extend base: Base(T1);
  impl fn F[self: Self](t: T1) { }
}

// --- fail_virtual_without_self.carbon

library "[[@TEST_NAME]]";

abstract class T1 {
  // CHECK:STDERR: fail_virtual_without_self.carbon:[[@LINE+4]]:3: error: virtual class function [VirtualWithoutSelf]
  // CHECK:STDERR:   virtual fn F();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~
  // CHECK:STDERR:
  virtual fn F();
  // CHECK:STDERR: fail_virtual_without_self.carbon:[[@LINE+4]]:3: error: virtual class function [VirtualWithoutSelf]
  // CHECK:STDERR:   abstract fn G();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  abstract fn G();
}

class T2 {
  extend base: T1;
  // CHECK:STDERR: fail_virtual_without_self.carbon:[[@LINE+4]]:3: error: virtual class function [VirtualWithoutSelf]
  // CHECK:STDERR:   impl fn F();
  // CHECK:STDERR:   ^~~~~~~~~~~~
  // CHECK:STDERR:
  impl fn F();
}

// --- fail_addr_self_mismatch.carbon

library "[[@TEST_NAME]]";

base class T1 {
  virtual fn F1[self: Self*]();
}

class T2 {
  extend base: T1;
  // CHECK:STDERR: fail_addr_self_mismatch.carbon:[[@LINE+7]]:14: error: redeclaration differs at implicit parameter 1 [RedeclParamDiffers]
  // CHECK:STDERR:   impl fn F1[addr self: Self*]();
  // CHECK:STDERR:              ^~~~~~~~~~~~~~~~
  // CHECK:STDERR: fail_addr_self_mismatch.carbon:[[@LINE-8]]:17: note: previous declaration's corresponding implicit parameter here [RedeclParamPrevious]
  // CHECK:STDERR:   virtual fn F1[self: Self*]();
  // CHECK:STDERR:                 ^~~~~~~~~~~
  // CHECK:STDERR:
  impl fn F1[addr self: Self*]();
}

// --- fail_generic_virtual.carbon

library "[[@TEST_NAME]]";

base class T1 {
  // CHECK:STDERR: fail_generic_virtual.carbon:[[@LINE+4]]:3: error: generic virtual function [GenericVirtual]
  // CHECK:STDERR:   virtual fn F[self: Self, T:! type]();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  virtual fn F[self: Self, T:! type]();
}

// --- fail_generic_virtual_in_generic_class.carbon

library "[[@TEST_NAME]]";

base class T1(T:! type) {
  // CHECK:STDERR: fail_generic_virtual_in_generic_class.carbon:[[@LINE+4]]:3: error: generic virtual function [GenericVirtual]
  // CHECK:STDERR:   virtual fn F[self: Self, T:! type]();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  virtual fn F[self: Self, T:! type]();
}

// --- generic_with_virtual.carbon

library "[[@TEST_NAME]]";

base class T1(T:! type) {
  virtual fn F[self: Self]() { }
}

// --- with_dependent_arg.carbon

library "[[@TEST_NAME]]";

base class T1(T:! type) {
  virtual fn F[self: Self](t: T) { }
}

// --- vtable_import_unneeded.carbon

library "[[@TEST_NAME]]";

import Modifiers;

fn F(b: Modifiers.Base);

// --- generic_derived_from_nongeneric.carbon

library "[[@TEST_NAME]]";

base class NonGenericBase {
  virtual fn F1[self: Self]() { }
  virtual fn F2[self: Self]() { }
}

base class GenericDerived(T:! type) {
  extend base: NonGenericBase;
  impl fn F2[self: Self]() { }
  virtual fn F3[self: Self]() { }
}

// --- nongeneric_derived_from_generic.carbon

library "[[@TEST_NAME]]";

base class GenericBase(T:! type) {
  virtual fn F1[self: Self]() { }
  virtual fn F2[self: Self]() { }
}

class T1;

base class NonGenericDerived {
  extend base: GenericBase(T1);
  impl fn F2[self: Self]() { }
  virtual fn F3[self: Self]() { }
}

// --- impl_generic_specifically.carbon

library "[[@TEST_NAME]]";

base class Base(T:! type) {
  virtual fn F[self: Self](t: Base(T)*) { }
}
class T1;
class D1 {
  extend base: Base(T1);
  impl fn F[self: Self](t: Base(T1)*) { }
}

// --- fail_impl_generic_specifically_mismatch.carbon

library "[[@TEST_NAME]]";

class T1;
class T2;

base class Base(T:! type) {
  virtual fn F[self: Self](t: T1*) { }
}

class D1 {
  extend base: Base(T1);
  // CHECK:STDERR: fail_impl_generic_specifically_mismatch.carbon:[[@LINE+7]]:25: error: type `<pattern for T2*>` of parameter 1 in redeclaration differs from previous parameter type `<pattern for T1*>` [RedeclParamDiffersType]
  // CHECK:STDERR:   impl fn F[self: Self](t: T2*) { }
  // CHECK:STDERR:                         ^~~~~~
  // CHECK:STDERR: fail_impl_generic_specifically_mismatch.carbon:[[@LINE-8]]:28: note: previous declaration's corresponding parameter here [RedeclParamPrevious]
  // CHECK:STDERR:   virtual fn F[self: Self](t: T1*) { }
  // CHECK:STDERR:                            ^~~~~~
  // CHECK:STDERR:
  impl fn F[self: Self](t: T2*) { }
}

// --- fail_impl_generic_generic_mismatch.carbon

library "[[@TEST_NAME]]";

abstract class Base(T:! type) {
  virtual fn F[self: Self](t: T*) { }
}
class Derived(T:! type) {
  extend base: Base(T);
  // CHECK:STDERR: fail_impl_generic_generic_mismatch.carbon:[[@LINE+7]]:25: error: type `<pattern for T>` of parameter 1 in redeclaration differs from previous parameter type `<pattern for T*>` [RedeclParamDiffersType]
  // CHECK:STDERR:   impl fn F[self: Self](t: T) { }
  // CHECK:STDERR:                         ^~~~
  // CHECK:STDERR: fail_impl_generic_generic_mismatch.carbon:[[@LINE-7]]:28: note: previous declaration's corresponding parameter here [RedeclParamPrevious]
  // CHECK:STDERR:   virtual fn F[self: Self](t: T*) { }
  // CHECK:STDERR:                            ^~~~~
  // CHECK:STDERR:
  impl fn F[self: Self](t: T) { }
}

// --- impl_generic_generic.carbon

library "[[@TEST_NAME]]";

abstract class Base(T:! type) {
  virtual fn F[self: Self](t: T) { }
}
class Derived(T:! type) {
  extend base: Base(T*);
  impl fn F[self: Self](t: T*) { }
}

// --- abstract_generic_undefined.carbon

library "[[@TEST_NAME]]";

abstract class Base(T:! type) {
  abstract fn F[self: Self]();
}

class T1;

class Derived {
  extend base: Base(T1);
  impl fn F[self: Self]() { }
}

// --- generic_lib.carbon

library "[[@TEST_NAME]]";

base class Base(T:! type) {
  virtual fn F[self: Self]() { }
}

// --- generic_import.carbon

library "[[@TEST_NAME]]";

import library "generic_lib";

class T1;
var v: Base(T1) = {};

// --- generic_derived_generic.carbon

library "[[@TEST_NAME]]";

base class T1(G1:! type) {
  virtual fn F[self: Self]() { }
}

class T2(G2:! type) {
  extend base: T1(G2);
}

// --- generic_derived_generic_context.carbon

library "[[@TEST_NAME]]";

base class T1(G1:! type) {
  virtual fn F[self: Self]() { }
}

class T2(G2:! type) {
  class T3 {
    extend base : T1(G2);
  }
}


// CHECK:STDOUT: --- modifiers.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %pattern_type.bcc: type = pattern_type %Base [concrete]
// CHECK:STDOUT:   %Base.H.type: type = fn_type @Base.H [concrete]
// CHECK:STDOUT:   %Base.H: %Base.H.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
// CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %Abstract: type = class_type @Abstract [concrete]
// CHECK:STDOUT:   %pattern_type.41e: type = pattern_type %Abstract [concrete]
// CHECK:STDOUT:   %Abstract.J.type: type = fn_type @Abstract.J [concrete]
// CHECK:STDOUT:   %Abstract.J: %Abstract.J.type = struct_value () [concrete]
// CHECK:STDOUT:   %Abstract.K.type: type = fn_type @Abstract.K [concrete]
// CHECK:STDOUT:   %Abstract.K: %Abstract.K.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.9d1: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Abstract [concrete]
// CHECK:STDOUT:   %pattern_type.f31: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op.type: type = fn_type @Abstract.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op: %Abstract.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Abstract.vtable_decl: ref %ptr.454 = vtable_decl @Abstract.vtable [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .Abstract = %Abstract.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: type = class_decl @Base [concrete = constants.%Base] {} {}
// CHECK:STDOUT:   %Abstract.decl: type = class_decl @Abstract [concrete = constants.%Abstract] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Base.as.Destroy.impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.decl: %Base.as.Destroy.impl.Op.type = fn_decl @Base.as.Destroy.impl.Op [concrete = constants.%Base.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.1b9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.1b9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.11f = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %ptr.11f = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Abstract.as.Destroy.impl: @Abstract.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op.decl: %Abstract.as.Destroy.impl.Op.type = fn_decl @Abstract.as.Destroy.impl.Op [concrete = constants.%Abstract.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.f31 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.f31 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Abstract.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Abstract.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base {
// CHECK:STDOUT:   %Base.H.decl: %Base.H.type = fn_decl @Base.H [concrete = constants.%Base.H] {
// CHECK:STDOUT:     %self.patt: %pattern_type.bcc = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.bcc = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Base = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %Base = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Base
// CHECK:STDOUT:   .H = %Base.H.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Abstract {
// CHECK:STDOUT:   %Abstract.J.decl: %Abstract.J.type = fn_decl @Abstract.J [concrete = constants.%Abstract.J] {
// CHECK:STDOUT:     %self.patt: %pattern_type.41e = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.41e = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Abstract = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
// CHECK:STDOUT:     %self: %Abstract = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Abstract.K.decl: %Abstract.K.type = fn_decl @Abstract.K [concrete = constants.%Abstract.K] {
// CHECK:STDOUT:     %self.patt: %pattern_type.41e = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.41e = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Abstract = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
// CHECK:STDOUT:     %self: %Abstract = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
// CHECK:STDOUT:   impl_decl @Abstract.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract.as.Destroy.impl.%Abstract.as.Destroy.impl.Op.decl), @Abstract.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d1]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Abstract.vtable [concrete = constants.%Abstract.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Abstract
// CHECK:STDOUT:   .J = %Abstract.J.decl
// CHECK:STDOUT:   .K = %Abstract.K.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.H.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Abstract.vtable {
// CHECK:STDOUT:   @Abstract.%Abstract.J.decl
// CHECK:STDOUT:   @Abstract.%Abstract.K.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Base.H(%self.param: %Base);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Base.as.Destroy.impl.Op(%self.param: %ptr.11f) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: abstract fn @Abstract.J(%self.param: %Abstract);
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Abstract.K(%self.param: %Abstract);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Abstract.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- override_import.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %Derived.H.type: type = fn_type @Derived.H [concrete]
// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT:   %Derived.H: %Derived.H.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.H.type: type = fn_type @Base.H [concrete]
// CHECK:STDOUT:   %Base.H: %Base.H.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.96c: type = struct_type {.base: %Base} [concrete]
// CHECK:STDOUT:   %complete_type.0e2: <witness> = complete_type_witness %struct_type.base.96c [concrete]
// CHECK:STDOUT:   %Use.type: type = fn_type @Use [concrete]
// CHECK:STDOUT:   %Use: %Use.type = struct_value () [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %struct_type.base.f5e: type = struct_type {.base: %empty_struct_type} [concrete]
// CHECK:STDOUT:   %Derived.vtable_ptr: ref %ptr.454 = vtable_ptr @Derived.vtable [concrete]
// CHECK:STDOUT:   %Base.val: %Base = struct_value (%Derived.vtable_ptr) [concrete]
// CHECK:STDOUT:   %Derived.val: %Derived = struct_value (%Base.val) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers: <namespace> = namespace file.%Modifiers.import, [concrete] {
// CHECK:STDOUT:     .Base = %Modifiers.Base
// CHECK:STDOUT:     import Modifiers//default
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers.Base: type = import_ref Modifiers//default, Base, loaded [concrete = constants.%Base]
// CHECK:STDOUT:   %Modifiers.import_ref.97a: ref %ptr.454 = import_ref Modifiers//default, loc6_1, loaded [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:   %Modifiers.import_ref.05e: <witness> = import_ref Modifiers//default, loc6_1, loaded [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   %Modifiers.import_ref.1f3 = import_ref Modifiers//default, inst18 [no loc], unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.2cc = import_ref Modifiers//default, loc5_29, unloaded
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Modifiers = imports.%Modifiers
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:     .Use = %Use.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Modifiers.import = import Modifiers
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT:   %Use.decl: %Use.type = fn_decl @Use [concrete = constants.%Use] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc6: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %Modifiers.ref: <namespace> = name_ref Modifiers, imports.%Modifiers [concrete = imports.%Modifiers]
// CHECK:STDOUT:   %Base.ref: type = name_ref Base, imports.%Modifiers.Base [concrete = constants.%Base]
// CHECK:STDOUT:   %.loc7: %Derived.elem = base_decl %Base.ref, element0 [concrete]
// CHECK:STDOUT:   %Derived.H.decl: %Derived.H.type = fn_decl @Derived.H [concrete = constants.%Derived.H] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.96c [concrete = constants.%complete_type.0e2]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .Modifiers = <poisoned>
// CHECK:STDOUT:   .base = %.loc7
// CHECK:STDOUT:   .H = %Derived.H.decl
// CHECK:STDOUT:   extend %Base.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base [from "modifiers.carbon"] {
// CHECK:STDOUT:   complete_type_witness = imports.%Modifiers.import_ref.05e
// CHECK:STDOUT:   vtable_decl = imports.%Modifiers.import_ref.97a
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%Modifiers.import_ref.1f3
// CHECK:STDOUT:   .H = imports.%Modifiers.import_ref.2cc
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   constants.%Base.H
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.H.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @Derived.H(%self.param: %Derived);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Base.H [from "modifiers.carbon"];
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Use() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %d.patt: %pattern_type.fb9 = binding_pattern d [concrete]
// CHECK:STDOUT:     %d.var_patt: %pattern_type.fb9 = var_pattern %d.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %d.var: ref %Derived = var %d.var_patt
// CHECK:STDOUT:   %.loc12_30.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc12_31.1: %struct_type.base.f5e = struct_literal (%.loc12_30.1)
// CHECK:STDOUT:   %.loc12_31.2: ref %Base = class_element_access %d.var, element0
// CHECK:STDOUT:   %.loc12_30.2: ref %ptr.454 = class_element_access %.loc12_31.2, element0
// CHECK:STDOUT:   %Derived.vtable_ptr: ref %ptr.454 = vtable_ptr @Derived.vtable [concrete = constants.%Derived.vtable_ptr]
// CHECK:STDOUT:   %.loc12_30.3: init %ptr.454 = initialize_from %Derived.vtable_ptr to %.loc12_30.2 [concrete = constants.%Derived.vtable_ptr]
// CHECK:STDOUT:   %.loc12_30.4: init %Base = class_init (%.loc12_30.3), %.loc12_31.2 [concrete = constants.%Base.val]
// CHECK:STDOUT:   %.loc12_31.3: init %Base = converted %.loc12_30.1, %.loc12_30.4 [concrete = constants.%Base.val]
// CHECK:STDOUT:   %.loc12_31.4: init %Derived = class_init (%.loc12_31.3), %d.var [concrete = constants.%Derived.val]
// CHECK:STDOUT:   %.loc12_3: init %Derived = converted %.loc12_31.1, %.loc12_31.4 [concrete = constants.%Derived.val]
// CHECK:STDOUT:   assign %d.var, %.loc12_3
// CHECK:STDOUT:   %Derived.ref: type = name_ref Derived, file.%Derived.decl [concrete = constants.%Derived]
// CHECK:STDOUT:   %d: ref %Derived = bind_name d, %d.var
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.bound: <bound method> = bound_method %d.var, constants.%Derived.as.Destroy.impl.Op
// CHECK:STDOUT:   %addr: %ptr.404 = addr_of %d.var
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.call: init %empty_tuple.type = call %Derived.as.Destroy.impl.Op.bound(%addr)
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- todo_fail_later_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.H.type: type = fn_type @Base.H [concrete]
// CHECK:STDOUT:   %Base.H: %Base.H.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %Base} [concrete]
// CHECK:STDOUT:   %complete_type.0e2: <witness> = complete_type_witness %struct_type.base [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers: <namespace> = namespace file.%Modifiers.import, [concrete] {
// CHECK:STDOUT:     .Base = %Modifiers.Base
// CHECK:STDOUT:     import Modifiers//default
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers.Base: type = import_ref Modifiers//default, Base, loaded [concrete = constants.%Base]
// CHECK:STDOUT:   %Modifiers.import_ref.97a: ref %ptr.454 = import_ref Modifiers//default, loc6_1, loaded [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:   %Modifiers.import_ref.05e: <witness> = import_ref Modifiers//default, loc6_1, loaded [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   %Modifiers.import_ref.1f3 = import_ref Modifiers//default, inst18 [no loc], unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.2cc = import_ref Modifiers//default, loc5_29, unloaded
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Modifiers = imports.%Modifiers
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Modifiers.import = import Modifiers
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc6: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %Derived.F.decl: %Derived.F.type = fn_decl @Derived.F [concrete = constants.%Derived.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers.ref: <namespace> = name_ref Modifiers, imports.%Modifiers [concrete = imports.%Modifiers]
// CHECK:STDOUT:   %Base.ref: type = name_ref Base, imports.%Modifiers.Base [concrete = constants.%Base]
// CHECK:STDOUT:   %.loc8: %Derived.elem = base_decl %Base.ref, element0 [concrete]
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.0e2]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .F = %Derived.F.decl
// CHECK:STDOUT:   .Modifiers = <poisoned>
// CHECK:STDOUT:   .base = %.loc8
// CHECK:STDOUT:   extend %Base.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base [from "modifiers.carbon"] {
// CHECK:STDOUT:   complete_type_witness = imports.%Modifiers.import_ref.05e
// CHECK:STDOUT:   vtable_decl = imports.%Modifiers.import_ref.97a
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%Modifiers.import_ref.1f3
// CHECK:STDOUT:   .H = imports.%Modifiers.import_ref.2cc
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   constants.%Base.H
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   constants.%Base.H
// CHECK:STDOUT:   @Derived.%Derived.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Derived.F(%self.param: %Derived);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Base.H [from "modifiers.carbon"];
// CHECK:STDOUT:
// CHECK:STDOUT: --- init.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %pattern_type.80f: type = pattern_type %Base [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %Base.H.type: type = fn_type @Base.H [concrete]
// CHECK:STDOUT:   %Base.H: %Base.H.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %Base.vtable_ptr: ref %ptr.454 = vtable_ptr @Base.vtable [concrete]
// CHECK:STDOUT:   %Base.val: %Base = struct_value (%Base.vtable_ptr) [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %Abstract: type = class_type @Abstract [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.2fb: <witness> = impl_witness imports.%Destroy.impl_witness_table.37d [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.f03: type = ptr_type %Base [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers: <namespace> = namespace file.%Modifiers.import, [concrete] {
// CHECK:STDOUT:     .Base = %Modifiers.Base
// CHECK:STDOUT:     import Modifiers//default
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers.Base: type = import_ref Modifiers//default, Base, loaded [concrete = constants.%Base]
// CHECK:STDOUT:   %Modifiers.import_ref.97a: ref %ptr.454 = import_ref Modifiers//default, loc6_1, loaded [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:   %Modifiers.import_ref.05ec96.1: <witness> = import_ref Modifiers//default, loc6_1, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT:   %Modifiers.import_ref.1f3 = import_ref Modifiers//default, inst18 [no loc], unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.2cc = import_ref Modifiers//default, loc5_29, unloaded
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT:   %Modifiers.import_ref.fe3: <witness> = import_ref Modifiers//default, loc4_17, loaded [concrete = constants.%Destroy.impl_witness.2fb]
// CHECK:STDOUT:   %Modifiers.import_ref.87c: type = import_ref Modifiers//default, loc4_17, loaded [concrete = constants.%Base]
// CHECK:STDOUT:   %Modifiers.import_ref.cb9298.1: type = import_ref Modifiers//default, inst31 [no loc], loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT:   %Modifiers.import_ref.5f6 = import_ref Modifiers//default, loc8_25, unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.30bb79.2 = import_ref Modifiers//default, loc12_1, unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.05ec96.2: <witness> = import_ref Modifiers//default, loc12_1, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT:   %Modifiers.import_ref.ee1 = import_ref Modifiers//default, inst75 [no loc], unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.bf4 = import_ref Modifiers//default, loc9_30, unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.b87 = import_ref Modifiers//default, loc11_29, unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.462: type = import_ref Modifiers//default, loc8_25, loaded [concrete = constants.%Abstract]
// CHECK:STDOUT:   %Modifiers.import_ref.cb9298.2: type = import_ref Modifiers//default, inst31 [no loc], loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT:   %Modifiers.import_ref.39f: %Base.as.Destroy.impl.Op.type = import_ref Modifiers//default, loc4_17, loaded [concrete = constants.%Base.as.Destroy.impl.Op]
// CHECK:STDOUT:   %Destroy.impl_witness_table.37d = impl_witness_table (%Modifiers.import_ref.39f), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Modifiers = imports.%Modifiers
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Modifiers.import = import Modifiers
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Base.as.Destroy.impl: imports.%Modifiers.import_ref.87c as imports.%Modifiers.import_ref.cb9298.1 [from "modifiers.carbon"] {
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   witness = imports.%Modifiers.import_ref.fe3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Abstract.as.Destroy.impl: imports.%Modifiers.import_ref.462 as imports.%Modifiers.import_ref.cb9298.2 [from "modifiers.carbon"] {
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   witness = imports.%Modifiers.import_ref.5f6
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base [from "modifiers.carbon"] {
// CHECK:STDOUT:   complete_type_witness = imports.%Modifiers.import_ref.05ec96.1
// CHECK:STDOUT:   vtable_decl = imports.%Modifiers.import_ref.97a
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%Modifiers.import_ref.1f3
// CHECK:STDOUT:   .H = imports.%Modifiers.import_ref.2cc
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Abstract [from "modifiers.carbon"] {
// CHECK:STDOUT:   complete_type_witness = imports.%Modifiers.import_ref.05ec96.2
// CHECK:STDOUT:   vtable_decl = imports.%Modifiers.import_ref.30bb79.2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%Modifiers.import_ref.ee1
// CHECK:STDOUT:   .J = imports.%Modifiers.import_ref.bf4
// CHECK:STDOUT:   .K = imports.%Modifiers.import_ref.b87
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   constants.%Base.H
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %v.patt: %pattern_type.80f = binding_pattern v [concrete]
// CHECK:STDOUT:     %v.var_patt: %pattern_type.80f = var_pattern %v.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %v.var: ref %Base = var %v.var_patt
// CHECK:STDOUT:   %.loc7_28.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc7_28.2: ref %ptr.454 = class_element_access %v.var, element0
// CHECK:STDOUT:   %Base.vtable_ptr: ref %ptr.454 = vtable_ptr @Base.vtable [concrete = constants.%Base.vtable_ptr]
// CHECK:STDOUT:   %.loc7_28.3: init %ptr.454 = initialize_from %Base.vtable_ptr to %.loc7_28.2 [concrete = constants.%Base.vtable_ptr]
// CHECK:STDOUT:   %.loc7_28.4: init %Base = class_init (%.loc7_28.3), %v.var [concrete = constants.%Base.val]
// CHECK:STDOUT:   %.loc7_3: init %Base = converted %.loc7_28.1, %.loc7_28.4 [concrete = constants.%Base.val]
// CHECK:STDOUT:   assign %v.var, %.loc7_3
// CHECK:STDOUT:   %.loc7_19: type = splice_block %Base.ref [concrete = constants.%Base] {
// CHECK:STDOUT:     %Modifiers.ref: <namespace> = name_ref Modifiers, imports.%Modifiers [concrete = imports.%Modifiers]
// CHECK:STDOUT:     %Base.ref: type = name_ref Base, imports.%Modifiers.Base [concrete = constants.%Base]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %v: ref %Base = bind_name v, %v.var
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Base.as.Destroy.impl.Op
// CHECK:STDOUT:   %addr: %ptr.f03 = addr_of %v.var
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.call: init %empty_tuple.type = call %Base.as.Destroy.impl.Op.bound(%addr)
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Base.H [from "modifiers.carbon"];
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Base.as.Destroy.impl.Op = "no_op" [from "modifiers.carbon"];
// CHECK:STDOUT:
// CHECK:STDOUT: --- impl_abstract.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %A1: type = class_type @A1 [concrete]
// CHECK:STDOUT:   %pattern_type.ddb: type = pattern_type %A1 [concrete]
// CHECK:STDOUT:   %A1.F.type: type = fn_type @A1.F [concrete]
// CHECK:STDOUT:   %A1.F: %A1.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.169: <witness> = impl_witness @A1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.678: type = ptr_type %A1 [concrete]
// CHECK:STDOUT:   %pattern_type.d72: type = pattern_type %ptr.678 [concrete]
// CHECK:STDOUT:   %A1.as.Destroy.impl.Op.type: type = fn_type @A1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %A1.as.Destroy.impl.Op: %A1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %A1.vtable_decl: ref %ptr.454 = vtable_decl @A1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %A2: type = class_type @A2 [concrete]
// CHECK:STDOUT:   %A2.elem: type = unbound_element_type %A2, %A1 [concrete]
// CHECK:STDOUT:   %pattern_type.b21: type = pattern_type %A2 [concrete]
// CHECK:STDOUT:   %A2.F.type: type = fn_type @A2.F [concrete]
// CHECK:STDOUT:   %A2.F: %A2.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ed9: <witness> = impl_witness @A2.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.590: type = ptr_type %A2 [concrete]
// CHECK:STDOUT:   %pattern_type.2c5: type = pattern_type %ptr.590 [concrete]
// CHECK:STDOUT:   %A2.as.Destroy.impl.Op.type: type = fn_type @A2.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %A2.as.Destroy.impl.Op: %A2.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %A2.vtable_decl: ref %ptr.454 = vtable_decl @A2.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %A1} [concrete]
// CHECK:STDOUT:   %complete_type.a6f: <witness> = complete_type_witness %struct_type.base [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .A1 = %A1.decl
// CHECK:STDOUT:     .A2 = %A2.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %A1.decl: type = class_decl @A1 [concrete = constants.%A1] {} {}
// CHECK:STDOUT:   %A2.decl: type = class_decl @A2 [concrete = constants.%A2] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @A1.as.Destroy.impl: @A1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %A1.as.Destroy.impl.Op.decl: %A1.as.Destroy.impl.Op.type = fn_decl @A1.as.Destroy.impl.Op [concrete = constants.%A1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.d72 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.d72 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.678 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%A1 [concrete = constants.%A1]
// CHECK:STDOUT:     %self: %ptr.678 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %A1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @A1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @A2.as.Destroy.impl: @A2.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %A2.as.Destroy.impl.Op.decl: %A2.as.Destroy.impl.Op.type = fn_decl @A2.as.Destroy.impl.Op [concrete = constants.%A2.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.2c5 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.2c5 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.590 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%A2 [concrete = constants.%A2]
// CHECK:STDOUT:     %self: %ptr.590 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %A2.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @A2.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @A1 {
// CHECK:STDOUT:   %A1.F.decl: %A1.F.type = fn_decl @A1.F [concrete = constants.%A1.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.ddb = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.ddb = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %A1 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%A1 [concrete = constants.%A1]
// CHECK:STDOUT:     %self: %A1 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A1 [concrete = constants.%A1]
// CHECK:STDOUT:   impl_decl @A1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A1.as.Destroy.impl.%A1.as.Destroy.impl.Op.decl), @A1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.169]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @A1.vtable [concrete = constants.%A1.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%A1
// CHECK:STDOUT:   .F = %A1.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @A2 {
// CHECK:STDOUT:   %A1.ref: type = name_ref A1, file.%A1.decl [concrete = constants.%A1]
// CHECK:STDOUT:   %.loc9: %A2.elem = base_decl %A1.ref, element0 [concrete]
// CHECK:STDOUT:   %A2.F.decl: %A2.F.type = fn_decl @A2.F [concrete = constants.%A2.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.b21 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.b21 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %A2 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%A2 [concrete = constants.%A2]
// CHECK:STDOUT:     %self: %A2 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A2 [concrete = constants.%A2]
// CHECK:STDOUT:   impl_decl @A2.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A2.as.Destroy.impl.%A2.as.Destroy.impl.Op.decl), @A2.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ed9]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @A2.vtable [concrete = constants.%A2.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.a6f]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%A2
// CHECK:STDOUT:   .A1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc9
// CHECK:STDOUT:   .F = %A2.F.decl
// CHECK:STDOUT:   extend %A1.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @A1.vtable {
// CHECK:STDOUT:   @A1.%A1.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @A2.vtable {
// CHECK:STDOUT:   @A2.%A2.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @A1.F(%self.param: %A1);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @A1.as.Destroy.impl.Op(%self.param: %ptr.678) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @A2.F(%self.param: %A2);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @A2.as.Destroy.impl.Op(%self.param: %ptr.590) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- impl_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %B1: type = class_type @B1 [concrete]
// CHECK:STDOUT:   %pattern_type.e47: type = pattern_type %B1 [concrete]
// CHECK:STDOUT:   %B1.F.type: type = fn_type @B1.F [concrete]
// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT:   %B1.F: %B1.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.20e: <witness> = impl_witness @B1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.890: type = ptr_type %B1 [concrete]
// CHECK:STDOUT:   %pattern_type.b78: type = pattern_type %ptr.890 [concrete]
// CHECK:STDOUT:   %B1.as.Destroy.impl.Op.type: type = fn_type @B1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %B1.as.Destroy.impl.Op: %B1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %B1.vtable_decl: ref %ptr.454 = vtable_decl @B1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %B2: type = class_type @B2 [concrete]
// CHECK:STDOUT:   %B2.elem: type = unbound_element_type %B2, %B1 [concrete]
// CHECK:STDOUT:   %pattern_type.b19: type = pattern_type %B2 [concrete]
// CHECK:STDOUT:   %B2.F.type: type = fn_type @B2.F [concrete]
// CHECK:STDOUT:   %B2.F: %B2.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.594: <witness> = impl_witness @B2.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.afe: type = ptr_type %B2 [concrete]
// CHECK:STDOUT:   %pattern_type.98e: type = pattern_type %ptr.afe [concrete]
// CHECK:STDOUT:   %B2.as.Destroy.impl.Op.type: type = fn_type @B2.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %B2.as.Destroy.impl.Op: %B2.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %B2.vtable_decl: ref %ptr.454 = vtable_decl @B2.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.508: type = struct_type {.base: %B1} [concrete]
// CHECK:STDOUT:   %complete_type.5ac: <witness> = complete_type_witness %struct_type.base.508 [concrete]
// CHECK:STDOUT:   %C: type = class_type @C [concrete]
// CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %B2 [concrete]
// CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
// CHECK:STDOUT:   %C.F.type: type = fn_type @C.F [concrete]
// CHECK:STDOUT:   %C.F: %C.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
// CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %C.vtable_decl: ref %ptr.454 = vtable_decl @C.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.421: type = struct_type {.base: %B2} [concrete]
// CHECK:STDOUT:   %complete_type.066: <witness> = complete_type_witness %struct_type.base.421 [concrete]
// CHECK:STDOUT:   %Use.type: type = fn_type @Use [concrete]
// CHECK:STDOUT:   %Use: %Use.type = struct_value () [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %B1.vtable_ptr: ref %ptr.454 = vtable_ptr @B1.vtable [concrete]
// CHECK:STDOUT:   %B1.val.267: %B1 = struct_value (%B1.vtable_ptr) [concrete]
// CHECK:STDOUT:   %struct_type.base.f5e: type = struct_type {.base: %empty_struct_type} [concrete]
// CHECK:STDOUT:   %B2.vtable_ptr: ref %ptr.454 = vtable_ptr @B2.vtable [concrete]
// CHECK:STDOUT:   %B1.val.d2f: %B1 = struct_value (%B2.vtable_ptr) [concrete]
// CHECK:STDOUT:   %B2.val.e9e: %B2 = struct_value (%B1.val.d2f) [concrete]
// CHECK:STDOUT:   %struct_type.base.a0c: type = struct_type {.base: %struct_type.base.f5e} [concrete]
// CHECK:STDOUT:   %C.vtable_ptr: ref %ptr.454 = vtable_ptr @C.vtable [concrete]
// CHECK:STDOUT:   %B1.val.b9d: %B1 = struct_value (%C.vtable_ptr) [concrete]
// CHECK:STDOUT:   %B2.val.426: %B2 = struct_value (%B1.val.b9d) [concrete]
// CHECK:STDOUT:   %C.val: %C = struct_value (%B2.val.426) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .B1 = %B1.decl
// CHECK:STDOUT:     .B2 = %B2.decl
// CHECK:STDOUT:     .C = %C.decl
// CHECK:STDOUT:     .Use = %Use.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %B1.decl: type = class_decl @B1 [concrete = constants.%B1] {} {}
// CHECK:STDOUT:   %B2.decl: type = class_decl @B2 [concrete = constants.%B2] {} {}
// CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT:   %Use.decl: %Use.type = fn_decl @Use [concrete = constants.%Use] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @B1.as.Destroy.impl: @B1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %B1.as.Destroy.impl.Op.decl: %B1.as.Destroy.impl.Op.type = fn_decl @B1.as.Destroy.impl.Op [concrete = constants.%B1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.b78 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.b78 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.890 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%B1 [concrete = constants.%B1]
// CHECK:STDOUT:     %self: %ptr.890 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %B1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @B1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @B2.as.Destroy.impl: @B2.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %B2.as.Destroy.impl.Op.decl: %B2.as.Destroy.impl.Op.type = fn_decl @B2.as.Destroy.impl.Op [concrete = constants.%B2.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.98e = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.98e = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.afe = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%B2 [concrete = constants.%B2]
// CHECK:STDOUT:     %self: %ptr.afe = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %B2.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @B2.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.Destroy.impl: @C.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %C.as.Destroy.impl.Op.decl: %C.as.Destroy.impl.Op.type = fn_decl @C.as.Destroy.impl.Op [concrete = constants.%C.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.44a = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.44a = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc13: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.019 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
// CHECK:STDOUT:     %self: %ptr.019 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %C.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @C.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @B1 {
// CHECK:STDOUT:   %B1.F.decl: %B1.F.type = fn_decl @B1.F [concrete = constants.%B1.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.e47 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.e47 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %B1 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%B1 [concrete = constants.%B1]
// CHECK:STDOUT:     %self: %B1 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B1 [concrete = constants.%B1]
// CHECK:STDOUT:   impl_decl @B1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B1.as.Destroy.impl.%B1.as.Destroy.impl.Op.decl), @B1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.20e]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @B1.vtable [concrete = constants.%B1.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%B1
// CHECK:STDOUT:   .F = %B1.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @B2 {
// CHECK:STDOUT:   %B1.ref: type = name_ref B1, file.%B1.decl [concrete = constants.%B1]
// CHECK:STDOUT:   %.loc9: %B2.elem = base_decl %B1.ref, element0 [concrete]
// CHECK:STDOUT:   %B2.F.decl: %B2.F.type = fn_decl @B2.F [concrete = constants.%B2.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.b19 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.b19 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %B2 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%B2 [concrete = constants.%B2]
// CHECK:STDOUT:     %self: %B2 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B2 [concrete = constants.%B2]
// CHECK:STDOUT:   impl_decl @B2.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B2.as.Destroy.impl.%B2.as.Destroy.impl.Op.decl), @B2.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.594]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @B2.vtable [concrete = constants.%B2.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.508 [concrete = constants.%complete_type.5ac]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%B2
// CHECK:STDOUT:   .B1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc9
// CHECK:STDOUT:   .F = %B2.F.decl
// CHECK:STDOUT:   extend %B1.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT:   %B2.ref: type = name_ref B2, file.%B2.decl [concrete = constants.%B2]
// CHECK:STDOUT:   %.loc14: %C.elem = base_decl %B2.ref, element0 [concrete]
// CHECK:STDOUT:   %C.F.decl: %C.F.type = fn_decl @C.F [concrete = constants.%C.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.c48 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.c48 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %C = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
// CHECK:STDOUT:     %self: %C = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
// CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @C.vtable [concrete = constants.%C.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.421 [concrete = constants.%complete_type.066]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%C
// CHECK:STDOUT:   .B2 = <poisoned>
// CHECK:STDOUT:   .base = %.loc14
// CHECK:STDOUT:   .F = %C.F.decl
// CHECK:STDOUT:   extend %B2.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @B1.vtable {
// CHECK:STDOUT:   @B1.%B1.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @B2.vtable {
// CHECK:STDOUT:   @B2.%B2.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @C.vtable {
// CHECK:STDOUT:   @C.%C.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @B1.F(%self.param: %B1);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @B1.as.Destroy.impl.Op(%self.param: %ptr.890) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @B2.F(%self.param: %B2);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @B2.as.Destroy.impl.Op(%self.param: %ptr.afe) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @C.F(%self.param: %C);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Use() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %b1.patt: %pattern_type.e47 = binding_pattern b1 [concrete]
// CHECK:STDOUT:     %b1.var_patt: %pattern_type.e47 = var_pattern %b1.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %b1.var: ref %B1 = var %b1.var_patt
// CHECK:STDOUT:   %.loc19_17.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc19_17.2: ref %ptr.454 = class_element_access %b1.var, element0
// CHECK:STDOUT:   %B1.vtable_ptr: ref %ptr.454 = vtable_ptr @B1.vtable [concrete = constants.%B1.vtable_ptr]
// CHECK:STDOUT:   %.loc19_17.3: init %ptr.454 = initialize_from %B1.vtable_ptr to %.loc19_17.2 [concrete = constants.%B1.vtable_ptr]
// CHECK:STDOUT:   %.loc19_17.4: init %B1 = class_init (%.loc19_17.3), %b1.var [concrete = constants.%B1.val.267]
// CHECK:STDOUT:   %.loc19_3: init %B1 = converted %.loc19_17.1, %.loc19_17.4 [concrete = constants.%B1.val.267]
// CHECK:STDOUT:   assign %b1.var, %.loc19_3
// CHECK:STDOUT:   %B1.ref: type = name_ref B1, file.%B1.decl [concrete = constants.%B1]
// CHECK:STDOUT:   %b1: ref %B1 = bind_name b1, %b1.var
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %b2.patt: %pattern_type.b19 = binding_pattern b2 [concrete]
// CHECK:STDOUT:     %b2.var_patt: %pattern_type.b19 = var_pattern %b2.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %b2.var: ref %B2 = var %b2.var_patt
// CHECK:STDOUT:   %.loc20_26.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc20_27.1: %struct_type.base.f5e = struct_literal (%.loc20_26.1)
// CHECK:STDOUT:   %.loc20_27.2: ref %B1 = class_element_access %b2.var, element0
// CHECK:STDOUT:   %.loc20_26.2: ref %ptr.454 = class_element_access %.loc20_27.2, element0
// CHECK:STDOUT:   %B2.vtable_ptr: ref %ptr.454 = vtable_ptr @B2.vtable [concrete = constants.%B2.vtable_ptr]
// CHECK:STDOUT:   %.loc20_26.3: init %ptr.454 = initialize_from %B2.vtable_ptr to %.loc20_26.2 [concrete = constants.%B2.vtable_ptr]
// CHECK:STDOUT:   %.loc20_26.4: init %B1 = class_init (%.loc20_26.3), %.loc20_27.2 [concrete = constants.%B1.val.d2f]
// CHECK:STDOUT:   %.loc20_27.3: init %B1 = converted %.loc20_26.1, %.loc20_26.4 [concrete = constants.%B1.val.d2f]
// CHECK:STDOUT:   %.loc20_27.4: init %B2 = class_init (%.loc20_27.3), %b2.var [concrete = constants.%B2.val.e9e]
// CHECK:STDOUT:   %.loc20_3: init %B2 = converted %.loc20_27.1, %.loc20_27.4 [concrete = constants.%B2.val.e9e]
// CHECK:STDOUT:   assign %b2.var, %.loc20_3
// CHECK:STDOUT:   %B2.ref: type = name_ref B2, file.%B2.decl [concrete = constants.%B2]
// CHECK:STDOUT:   %b2: ref %B2 = bind_name b2, %b2.var
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %c.patt: %pattern_type.c48 = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.var_patt: %pattern_type.c48 = var_pattern %c.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c.var: ref %C = var %c.var_patt
// CHECK:STDOUT:   %.loc21_33.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc21_34.1: %struct_type.base.f5e = struct_literal (%.loc21_33.1)
// CHECK:STDOUT:   %.loc21_35.1: %struct_type.base.a0c = struct_literal (%.loc21_34.1)
// CHECK:STDOUT:   %.loc21_35.2: ref %B2 = class_element_access %c.var, element0
// CHECK:STDOUT:   %.loc21_34.2: ref %B1 = class_element_access %.loc21_35.2, element0
// CHECK:STDOUT:   %.loc21_33.2: ref %ptr.454 = class_element_access %.loc21_34.2, element0
// CHECK:STDOUT:   %C.vtable_ptr: ref %ptr.454 = vtable_ptr @C.vtable [concrete = constants.%C.vtable_ptr]
// CHECK:STDOUT:   %.loc21_33.3: init %ptr.454 = initialize_from %C.vtable_ptr to %.loc21_33.2 [concrete = constants.%C.vtable_ptr]
// CHECK:STDOUT:   %.loc21_33.4: init %B1 = class_init (%.loc21_33.3), %.loc21_34.2 [concrete = constants.%B1.val.b9d]
// CHECK:STDOUT:   %.loc21_34.3: init %B1 = converted %.loc21_33.1, %.loc21_33.4 [concrete = constants.%B1.val.b9d]
// CHECK:STDOUT:   %.loc21_34.4: init %B2 = class_init (%.loc21_34.3), %.loc21_35.2 [concrete = constants.%B2.val.426]
// CHECK:STDOUT:   %.loc21_35.3: init %B2 = converted %.loc21_34.1, %.loc21_34.4 [concrete = constants.%B2.val.426]
// CHECK:STDOUT:   %.loc21_35.4: init %C = class_init (%.loc21_35.3), %c.var [concrete = constants.%C.val]
// CHECK:STDOUT:   %.loc21_3: init %C = converted %.loc21_35.1, %.loc21_35.4 [concrete = constants.%C.val]
// CHECK:STDOUT:   assign %c.var, %.loc21_3
// CHECK:STDOUT:   %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:   %c: ref %C = bind_name c, %c.var
// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%C.as.Destroy.impl.Op
// CHECK:STDOUT:   %addr.loc21: %ptr.019 = addr_of %c.var
// CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %C.as.Destroy.impl.Op.bound(%addr.loc21)
// CHECK:STDOUT:   %B2.as.Destroy.impl.Op.bound: <bound method> = bound_method %b2.var, constants.%B2.as.Destroy.impl.Op
// CHECK:STDOUT:   %addr.loc20: %ptr.afe = addr_of %b2.var
// CHECK:STDOUT:   %B2.as.Destroy.impl.Op.call: init %empty_tuple.type = call %B2.as.Destroy.impl.Op.bound(%addr.loc20)
// CHECK:STDOUT:   %B1.as.Destroy.impl.Op.bound: <bound method> = bound_method %b1.var, constants.%B1.as.Destroy.impl.Op
// CHECK:STDOUT:   %addr.loc19: %ptr.890 = addr_of %b1.var
// CHECK:STDOUT:   %B1.as.Destroy.impl.Op.call: init %empty_tuple.type = call %B1.as.Destroy.impl.Op.bound(%addr.loc19)
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_modifiers.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %C: type = class_type @C [concrete]
// CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
// CHECK:STDOUT:   %C.F.type: type = fn_type @C.F [concrete]
// CHECK:STDOUT:   %C.F: %C.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
// CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .C = %C.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.Destroy.impl: @C.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %C.as.Destroy.impl.Op.decl: %C.as.Destroy.impl.Op.type = fn_decl @C.as.Destroy.impl.Op [concrete = constants.%C.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.44a = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.44a = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.019 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
// CHECK:STDOUT:     %self: %ptr.019 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %C.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @C.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT:   %C.F.decl: %C.F.type = fn_decl @C.F [concrete = constants.%C.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.c48 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.c48 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %C = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
// CHECK:STDOUT:     %self: %C = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
// CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%C
// CHECK:STDOUT:   .F = %C.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @C.F(%self.param: %C);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- init_members.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
// CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT:   %Base.elem: type = unbound_element_type %Base, %i32 [concrete]
// CHECK:STDOUT:   %pattern_type.bcc: type = pattern_type %Base [concrete]
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F [concrete]
// CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
// CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr.m1.m2: type = struct_type {.<vptr>: %ptr.454, .m1: %i32, .m2: %i32} [concrete]
// CHECK:STDOUT:   %complete_type.cf7: <witness> = complete_type_witness %struct_type.vptr.m1.m2 [concrete]
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
// CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
// CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
// CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
// CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
// CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
// CHECK:STDOUT:   %struct_type.m2.m1.68c: type = struct_type {.m2: %i32, .m1: %i32} [concrete]
// CHECK:STDOUT:   %Base.vtable_ptr: ref %ptr.454 = vtable_ptr @Base.vtable [concrete]
// CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
// CHECK:STDOUT:   %struct_type.m2.m1.5f2: type = struct_type {.m2: Core.IntLiteral, .m1: Core.IntLiteral} [concrete]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
// CHECK:STDOUT:   %Base.val: %Base = struct_value (%Base.vtable_ptr, %int_5.0f6, %int_3.822) [concrete]
// CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Int = %Core.Int
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: type = class_decl @Base [concrete = constants.%Base] {} {}
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Base.as.Destroy.impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.decl: %Base.as.Destroy.impl.Op.type = fn_decl @Base.as.Destroy.impl.Op [concrete = constants.%Base.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.1b9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.1b9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.11f = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %ptr.11f = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base {
// CHECK:STDOUT:   %int_32.loc5: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:   %i32.loc5: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:   %.loc5: %Base.elem = field_decl m1, element1 [concrete]
// CHECK:STDOUT:   %int_32.loc6: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:   %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:   %.loc6: %Base.elem = field_decl m2, element2 [concrete]
// CHECK:STDOUT:   %Base.F.decl: %Base.F.type = fn_decl @Base.F [concrete = constants.%Base.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.bcc = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.bcc = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Base = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %Base = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr.m1.m2 [concrete = constants.%complete_type.cf7]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Base
// CHECK:STDOUT:   .m1 = %.loc5
// CHECK:STDOUT:   .m2 = %.loc6
// CHECK:STDOUT:   .F = %Base.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Base.F(%self.param: %Base);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Base.as.Destroy.impl.Op(%self.param: %ptr.11f) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %i.patt: %pattern_type.7ce = binding_pattern i [concrete]
// CHECK:STDOUT:     %i.var_patt: %pattern_type.7ce = var_pattern %i.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %i.var: ref %i32 = var %i.var_patt
// CHECK:STDOUT:   %int_3.loc12: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
// CHECK:STDOUT:   %impl.elem0.loc12: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
// CHECK:STDOUT:   %bound_method.loc12_3.1: <bound method> = bound_method %int_3.loc12, %impl.elem0.loc12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
// CHECK:STDOUT:   %specific_fn.loc12: <specific function> = specific_function %impl.elem0.loc12, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT:   %bound_method.loc12_3.2: <bound method> = bound_method %int_3.loc12, %specific_fn.loc12 [concrete = constants.%bound_method.047]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc12: init %i32 = call %bound_method.loc12_3.2(%int_3.loc12) [concrete = constants.%int_3.822]
// CHECK:STDOUT:   %.loc12_3: init %i32 = converted %int_3.loc12, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc12 [concrete = constants.%int_3.822]
// CHECK:STDOUT:   assign %i.var, %.loc12_3
// CHECK:STDOUT:   %.loc12_10: type = splice_block %i32 [concrete = constants.%i32] {
// CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %i: ref %i32 = bind_name i, %i.var
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %b1.patt: %pattern_type.bcc = binding_pattern b1 [concrete]
// CHECK:STDOUT:     %b1.var_patt: %pattern_type.bcc = var_pattern %b1.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %b1.var: ref %Base = var %b1.var_patt
// CHECK:STDOUT:   %i.ref.loc13_25: ref %i32 = name_ref i, %i
// CHECK:STDOUT:   %i.ref.loc13_34: ref %i32 = name_ref i, %i
// CHECK:STDOUT:   %.loc13_35.1: %struct_type.m2.m1.68c = struct_literal (%i.ref.loc13_25, %i.ref.loc13_34)
// CHECK:STDOUT:   %.loc13_35.2: ref %ptr.454 = class_element_access %b1.var, element0
// CHECK:STDOUT:   %Base.vtable_ptr.loc13: ref %ptr.454 = vtable_ptr @Base.vtable [concrete = constants.%Base.vtable_ptr]
// CHECK:STDOUT:   %.loc13_35.3: init %ptr.454 = initialize_from %Base.vtable_ptr.loc13 to %.loc13_35.2 [concrete = constants.%Base.vtable_ptr]
// CHECK:STDOUT:   %.loc13_34: %i32 = bind_value %i.ref.loc13_34
// CHECK:STDOUT:   %.loc13_35.4: ref %i32 = class_element_access %b1.var, element2
// CHECK:STDOUT:   %.loc13_35.5: init %i32 = initialize_from %.loc13_34 to %.loc13_35.4
// CHECK:STDOUT:   %.loc13_25: %i32 = bind_value %i.ref.loc13_25
// CHECK:STDOUT:   %.loc13_35.6: ref %i32 = class_element_access %b1.var, element1
// CHECK:STDOUT:   %.loc13_35.7: init %i32 = initialize_from %.loc13_25 to %.loc13_35.6
// CHECK:STDOUT:   %.loc13_35.8: init %Base = class_init (%.loc13_35.3, %.loc13_35.5, %.loc13_35.7), %b1.var
// CHECK:STDOUT:   %.loc13_3: init %Base = converted %.loc13_35.1, %.loc13_35.8
// CHECK:STDOUT:   assign %b1.var, %.loc13_3
// CHECK:STDOUT:   %Base.ref.loc13: type = name_ref Base, file.%Base.decl [concrete = constants.%Base]
// CHECK:STDOUT:   %b1: ref %Base = bind_name b1, %b1.var
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %b2.patt: %pattern_type.bcc = binding_pattern b2 [concrete]
// CHECK:STDOUT:     %b2.var_patt: %pattern_type.bcc = var_pattern %b2.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %b2.var: ref %Base = var %b2.var_patt
// CHECK:STDOUT:   %int_3.loc14: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
// CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
// CHECK:STDOUT:   %.loc14_35.1: %struct_type.m2.m1.5f2 = struct_literal (%int_3.loc14, %int_5)
// CHECK:STDOUT:   %.loc14_35.2: ref %ptr.454 = class_element_access %b2.var, element0
// CHECK:STDOUT:   %Base.vtable_ptr.loc14: ref %ptr.454 = vtable_ptr @Base.vtable [concrete = constants.%Base.vtable_ptr]
// CHECK:STDOUT:   %.loc14_35.3: init %ptr.454 = initialize_from %Base.vtable_ptr.loc14 to %.loc14_35.2 [concrete = constants.%Base.vtable_ptr]
// CHECK:STDOUT:   %impl.elem0.loc14_35.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
// CHECK:STDOUT:   %bound_method.loc14_35.1: <bound method> = bound_method %int_5, %impl.elem0.loc14_35.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
// CHECK:STDOUT:   %specific_fn.loc14_35.1: <specific function> = specific_function %impl.elem0.loc14_35.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT:   %bound_method.loc14_35.2: <bound method> = bound_method %int_5, %specific_fn.loc14_35.1 [concrete = constants.%bound_method.a25]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35.1: init %i32 = call %bound_method.loc14_35.2(%int_5) [concrete = constants.%int_5.0f6]
// CHECK:STDOUT:   %.loc14_35.4: init %i32 = converted %int_5, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35.1 [concrete = constants.%int_5.0f6]
// CHECK:STDOUT:   %.loc14_35.5: ref %i32 = class_element_access %b2.var, element2
// CHECK:STDOUT:   %.loc14_35.6: init %i32 = initialize_from %.loc14_35.4 to %.loc14_35.5 [concrete = constants.%int_5.0f6]
// CHECK:STDOUT:   %impl.elem0.loc14_35.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
// CHECK:STDOUT:   %bound_method.loc14_35.3: <bound method> = bound_method %int_3.loc14, %impl.elem0.loc14_35.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
// CHECK:STDOUT:   %specific_fn.loc14_35.2: <specific function> = specific_function %impl.elem0.loc14_35.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT:   %bound_method.loc14_35.4: <bound method> = bound_method %int_3.loc14, %specific_fn.loc14_35.2 [concrete = constants.%bound_method.047]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35.2: init %i32 = call %bound_method.loc14_35.4(%int_3.loc14) [concrete = constants.%int_3.822]
// CHECK:STDOUT:   %.loc14_35.7: init %i32 = converted %int_3.loc14, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35.2 [concrete = constants.%int_3.822]
// CHECK:STDOUT:   %.loc14_35.8: ref %i32 = class_element_access %b2.var, element1
// CHECK:STDOUT:   %.loc14_35.9: init %i32 = initialize_from %.loc14_35.7 to %.loc14_35.8 [concrete = constants.%int_3.822]
// CHECK:STDOUT:   %.loc14_35.10: init %Base = class_init (%.loc14_35.3, %.loc14_35.6, %.loc14_35.9), %b2.var [concrete = constants.%Base.val]
// CHECK:STDOUT:   %.loc14_3: init %Base = converted %.loc14_35.1, %.loc14_35.10 [concrete = constants.%Base.val]
// CHECK:STDOUT:   assign %b2.var, %.loc14_3
// CHECK:STDOUT:   %Base.ref.loc14: type = name_ref Base, file.%Base.decl [concrete = constants.%Base]
// CHECK:STDOUT:   %b2: ref %Base = bind_name b2, %b2.var
// CHECK:STDOUT:   %b1.ref: ref %Base = name_ref b1, %b1
// CHECK:STDOUT:   %m2.ref: %Base.elem = name_ref m2, @Base.%.loc6 [concrete = @Base.%.loc6]
// CHECK:STDOUT:   %.loc16_5: ref %i32 = class_element_access %b1.ref, element2
// CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
// CHECK:STDOUT:   %impl.elem0.loc16: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
// CHECK:STDOUT:   %bound_method.loc16_9.1: <bound method> = bound_method %int_4, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
// CHECK:STDOUT:   %specific_fn.loc16: <specific function> = specific_function %impl.elem0.loc16, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT:   %bound_method.loc16_9.2: <bound method> = bound_method %int_4, %specific_fn.loc16 [concrete = constants.%bound_method.1da]
// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16: init %i32 = call %bound_method.loc16_9.2(%int_4) [concrete = constants.%int_4.940]
// CHECK:STDOUT:   %.loc16_9: init %i32 = converted %int_4, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16 [concrete = constants.%int_4.940]
// CHECK:STDOUT:   assign %.loc16_5, %.loc16_9
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %b2.var, constants.%Base.as.Destroy.impl.Op
// CHECK:STDOUT:   %addr.loc14: %ptr.11f = addr_of %b2.var
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.call.loc14: init %empty_tuple.type = call %Base.as.Destroy.impl.Op.bound.loc14(%addr.loc14)
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %b1.var, constants.%Base.as.Destroy.impl.Op
// CHECK:STDOUT:   %addr.loc13: %ptr.11f = addr_of %b1.var
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.call.loc13: init %empty_tuple.type = call %Base.as.Destroy.impl.Op.bound.loc13(%addr.loc13)
// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%Int.as.Destroy.impl.Op.715
// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
// CHECK:STDOUT:   %bound_method.loc12_3.3: <bound method> = bound_method %i.var, %Int.as.Destroy.impl.Op.specific_fn
// CHECK:STDOUT:   %addr.loc12: %ptr.235 = addr_of %i.var
// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc12_3.3(%addr.loc12)
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_impl_without_base_declaration.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
// CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr.base: type = struct_type {.<vptr>: %ptr.454, .base: %Base} [concrete]
// CHECK:STDOUT:   %complete_type.336: <witness> = complete_type_witness %struct_type.vptr.base [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: type = class_decl @Base [concrete = constants.%Base] {} {}
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Base.as.Destroy.impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.decl: %Base.as.Destroy.impl.Op.type = fn_decl @Base.as.Destroy.impl.Op [concrete = constants.%Base.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.1b9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.1b9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.11f = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %ptr.11f = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc7: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base {
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Base
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %Base.ref: type = name_ref Base, file.%Base.decl [concrete = constants.%Base]
// CHECK:STDOUT:   %.loc8: %Derived.elem = base_decl %Base.ref, element1 [concrete]
// CHECK:STDOUT:   %Derived.F.decl: %Derived.F.type = fn_decl @Derived.F [concrete = constants.%Derived.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr.base [concrete = constants.%complete_type.336]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .Base = <poisoned>
// CHECK:STDOUT:   .base = %.loc8
// CHECK:STDOUT:   .F = %Derived.F.decl
// CHECK:STDOUT:   extend %Base.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {}
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Base.as.Destroy.impl.Op(%self.param: %ptr.11f) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @Derived.F(%self.param: %Derived);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- abstract_impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %AbstractBase: type = class_type @AbstractBase [concrete]
// CHECK:STDOUT:   %pattern_type.27c: type = pattern_type %AbstractBase [concrete]
// CHECK:STDOUT:   %AbstractBase.F.type: type = fn_type @AbstractBase.F [concrete]
// CHECK:STDOUT:   %AbstractBase.F: %AbstractBase.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ac3: <witness> = impl_witness @AbstractBase.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.e86: type = ptr_type %AbstractBase [concrete]
// CHECK:STDOUT:   %pattern_type.35f: type = pattern_type %ptr.e86 [concrete]
// CHECK:STDOUT:   %AbstractBase.as.Destroy.impl.Op.type: type = fn_type @AbstractBase.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %AbstractBase.as.Destroy.impl.Op: %AbstractBase.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %AbstractBase.vtable_decl: ref %ptr.454 = vtable_decl @AbstractBase.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %AbstractIntermediate: type = class_type @AbstractIntermediate [concrete]
// CHECK:STDOUT:   %AbstractIntermediate.elem: type = unbound_element_type %AbstractIntermediate, %AbstractBase [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.93a: <witness> = impl_witness @AbstractIntermediate.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.fd8: type = ptr_type %AbstractIntermediate [concrete]
// CHECK:STDOUT:   %pattern_type.28b: type = pattern_type %ptr.fd8 [concrete]
// CHECK:STDOUT:   %AbstractIntermediate.as.Destroy.impl.Op.type: type = fn_type @AbstractIntermediate.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %AbstractIntermediate.as.Destroy.impl.Op: %AbstractIntermediate.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %AbstractIntermediate.vtable_decl: ref %ptr.454 = vtable_decl @AbstractIntermediate.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.efd: type = struct_type {.base: %AbstractBase} [concrete]
// CHECK:STDOUT:   %complete_type.2d3: <witness> = complete_type_witness %struct_type.base.efd [concrete]
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %AbstractIntermediate [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.da5: type = struct_type {.base: %AbstractIntermediate} [concrete]
// CHECK:STDOUT:   %complete_type.f8c: <witness> = complete_type_witness %struct_type.base.da5 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .AbstractBase = %AbstractBase.decl
// CHECK:STDOUT:     .AbstractIntermediate = %AbstractIntermediate.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %AbstractBase.decl: type = class_decl @AbstractBase [concrete = constants.%AbstractBase] {} {}
// CHECK:STDOUT:   %AbstractIntermediate.decl: type = class_decl @AbstractIntermediate [concrete = constants.%AbstractIntermediate] {} {}
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @AbstractBase.as.Destroy.impl: @AbstractBase.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %AbstractBase.as.Destroy.impl.Op.decl: %AbstractBase.as.Destroy.impl.Op.type = fn_decl @AbstractBase.as.Destroy.impl.Op [concrete = constants.%AbstractBase.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.35f = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.35f = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.e86 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%AbstractBase [concrete = constants.%AbstractBase]
// CHECK:STDOUT:     %self: %ptr.e86 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %AbstractBase.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @AbstractBase.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @AbstractIntermediate.as.Destroy.impl: @AbstractIntermediate.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %AbstractIntermediate.as.Destroy.impl.Op.decl: %AbstractIntermediate.as.Destroy.impl.Op.type = fn_decl @AbstractIntermediate.as.Destroy.impl.Op [concrete = constants.%AbstractIntermediate.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.28b = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.28b = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.fd8 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%AbstractIntermediate [concrete = constants.%AbstractIntermediate]
// CHECK:STDOUT:     %self: %ptr.fd8 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %AbstractIntermediate.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @AbstractIntermediate.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc12: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @AbstractBase {
// CHECK:STDOUT:   %AbstractBase.F.decl: %AbstractBase.F.type = fn_decl @AbstractBase.F [concrete = constants.%AbstractBase.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.27c = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.27c = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %AbstractBase = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%AbstractBase [concrete = constants.%AbstractBase]
// CHECK:STDOUT:     %self: %AbstractBase = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AbstractBase [concrete = constants.%AbstractBase]
// CHECK:STDOUT:   impl_decl @AbstractBase.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AbstractBase.as.Destroy.impl.%AbstractBase.as.Destroy.impl.Op.decl), @AbstractBase.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ac3]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @AbstractBase.vtable [concrete = constants.%AbstractBase.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%AbstractBase
// CHECK:STDOUT:   .F = %AbstractBase.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @AbstractIntermediate {
// CHECK:STDOUT:   %AbstractBase.ref: type = name_ref AbstractBase, file.%AbstractBase.decl [concrete = constants.%AbstractBase]
// CHECK:STDOUT:   %.loc9: %AbstractIntermediate.elem = base_decl %AbstractBase.ref, element0 [concrete]
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AbstractIntermediate [concrete = constants.%AbstractIntermediate]
// CHECK:STDOUT:   impl_decl @AbstractIntermediate.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AbstractIntermediate.as.Destroy.impl.%AbstractIntermediate.as.Destroy.impl.Op.decl), @AbstractIntermediate.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.93a]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @AbstractIntermediate.vtable [concrete = constants.%AbstractIntermediate.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.efd [concrete = constants.%complete_type.2d3]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%AbstractIntermediate
// CHECK:STDOUT:   .AbstractBase = <poisoned>
// CHECK:STDOUT:   .base = %.loc9
// CHECK:STDOUT:   extend %AbstractBase.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %AbstractIntermediate.ref: type = name_ref AbstractIntermediate, file.%AbstractIntermediate.decl [concrete = constants.%AbstractIntermediate]
// CHECK:STDOUT:   %.loc13: %Derived.elem = base_decl %AbstractIntermediate.ref, element0 [concrete]
// CHECK:STDOUT:   %Derived.F.decl: %Derived.F.type = fn_decl @Derived.F [concrete = constants.%Derived.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.da5 [concrete = constants.%complete_type.f8c]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .AbstractIntermediate = <poisoned>
// CHECK:STDOUT:   .base = %.loc13
// CHECK:STDOUT:   .F = %Derived.F.decl
// CHECK:STDOUT:   extend %AbstractIntermediate.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @AbstractBase.vtable {
// CHECK:STDOUT:   @AbstractBase.%AbstractBase.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @AbstractIntermediate.vtable {
// CHECK:STDOUT:   constants.%AbstractBase.F
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: abstract fn @AbstractBase.F(%self.param: %AbstractBase);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @AbstractBase.as.Destroy.impl.Op(%self.param: %ptr.e86) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @AbstractIntermediate.as.Destroy.impl.Op(%self.param: %ptr.fd8) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @Derived.F(%self.param: %Derived);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- virtual_impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %VirtualBase: type = class_type @VirtualBase [concrete]
// CHECK:STDOUT:   %pattern_type.ad4: type = pattern_type %VirtualBase [concrete]
// CHECK:STDOUT:   %VirtualBase.F.type: type = fn_type @VirtualBase.F [concrete]
// CHECK:STDOUT:   %VirtualBase.F: %VirtualBase.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.8a3: <witness> = impl_witness @VirtualBase.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.e57: type = ptr_type %VirtualBase [concrete]
// CHECK:STDOUT:   %pattern_type.f17: type = pattern_type %ptr.e57 [concrete]
// CHECK:STDOUT:   %VirtualBase.as.Destroy.impl.Op.type: type = fn_type @VirtualBase.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %VirtualBase.as.Destroy.impl.Op: %VirtualBase.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %VirtualBase.vtable_decl: ref %ptr.454 = vtable_decl @VirtualBase.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %VirtualIntermediate: type = class_type @VirtualIntermediate [concrete]
// CHECK:STDOUT:   %VirtualIntermediate.elem: type = unbound_element_type %VirtualIntermediate, %VirtualBase [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.3cb: <witness> = impl_witness @VirtualIntermediate.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.7dc: type = ptr_type %VirtualIntermediate [concrete]
// CHECK:STDOUT:   %pattern_type.906: type = pattern_type %ptr.7dc [concrete]
// CHECK:STDOUT:   %VirtualIntermediate.as.Destroy.impl.Op.type: type = fn_type @VirtualIntermediate.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %VirtualIntermediate.as.Destroy.impl.Op: %VirtualIntermediate.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %VirtualIntermediate.vtable_decl: ref %ptr.454 = vtable_decl @VirtualIntermediate.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.61e: type = struct_type {.base: %VirtualBase} [concrete]
// CHECK:STDOUT:   %complete_type.f09: <witness> = complete_type_witness %struct_type.base.61e [concrete]
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %VirtualIntermediate [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.43c: type = struct_type {.base: %VirtualIntermediate} [concrete]
// CHECK:STDOUT:   %complete_type.fa6: <witness> = complete_type_witness %struct_type.base.43c [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .VirtualBase = %VirtualBase.decl
// CHECK:STDOUT:     .VirtualIntermediate = %VirtualIntermediate.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %VirtualBase.decl: type = class_decl @VirtualBase [concrete = constants.%VirtualBase] {} {}
// CHECK:STDOUT:   %VirtualIntermediate.decl: type = class_decl @VirtualIntermediate [concrete = constants.%VirtualIntermediate] {} {}
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @VirtualBase.as.Destroy.impl: @VirtualBase.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %VirtualBase.as.Destroy.impl.Op.decl: %VirtualBase.as.Destroy.impl.Op.type = fn_decl @VirtualBase.as.Destroy.impl.Op [concrete = constants.%VirtualBase.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.f17 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.f17 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.e57 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%VirtualBase [concrete = constants.%VirtualBase]
// CHECK:STDOUT:     %self: %ptr.e57 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %VirtualBase.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @VirtualBase.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @VirtualIntermediate.as.Destroy.impl: @VirtualIntermediate.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %VirtualIntermediate.as.Destroy.impl.Op.decl: %VirtualIntermediate.as.Destroy.impl.Op.type = fn_decl @VirtualIntermediate.as.Destroy.impl.Op [concrete = constants.%VirtualIntermediate.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.906 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.906 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.7dc = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%VirtualIntermediate [concrete = constants.%VirtualIntermediate]
// CHECK:STDOUT:     %self: %ptr.7dc = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %VirtualIntermediate.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @VirtualIntermediate.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc12: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @VirtualBase {
// CHECK:STDOUT:   %VirtualBase.F.decl: %VirtualBase.F.type = fn_decl @VirtualBase.F [concrete = constants.%VirtualBase.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.ad4 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.ad4 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %VirtualBase = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%VirtualBase [concrete = constants.%VirtualBase]
// CHECK:STDOUT:     %self: %VirtualBase = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%VirtualBase [concrete = constants.%VirtualBase]
// CHECK:STDOUT:   impl_decl @VirtualBase.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@VirtualBase.as.Destroy.impl.%VirtualBase.as.Destroy.impl.Op.decl), @VirtualBase.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.8a3]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @VirtualBase.vtable [concrete = constants.%VirtualBase.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%VirtualBase
// CHECK:STDOUT:   .F = %VirtualBase.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @VirtualIntermediate {
// CHECK:STDOUT:   %VirtualBase.ref: type = name_ref VirtualBase, file.%VirtualBase.decl [concrete = constants.%VirtualBase]
// CHECK:STDOUT:   %.loc9: %VirtualIntermediate.elem = base_decl %VirtualBase.ref, element0 [concrete]
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%VirtualIntermediate [concrete = constants.%VirtualIntermediate]
// CHECK:STDOUT:   impl_decl @VirtualIntermediate.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@VirtualIntermediate.as.Destroy.impl.%VirtualIntermediate.as.Destroy.impl.Op.decl), @VirtualIntermediate.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.3cb]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @VirtualIntermediate.vtable [concrete = constants.%VirtualIntermediate.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.61e [concrete = constants.%complete_type.f09]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%VirtualIntermediate
// CHECK:STDOUT:   .VirtualBase = <poisoned>
// CHECK:STDOUT:   .base = %.loc9
// CHECK:STDOUT:   extend %VirtualBase.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %VirtualIntermediate.ref: type = name_ref VirtualIntermediate, file.%VirtualIntermediate.decl [concrete = constants.%VirtualIntermediate]
// CHECK:STDOUT:   %.loc13: %Derived.elem = base_decl %VirtualIntermediate.ref, element0 [concrete]
// CHECK:STDOUT:   %Derived.F.decl: %Derived.F.type = fn_decl @Derived.F [concrete = constants.%Derived.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.43c [concrete = constants.%complete_type.fa6]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .VirtualIntermediate = <poisoned>
// CHECK:STDOUT:   .base = %.loc13
// CHECK:STDOUT:   .F = %Derived.F.decl
// CHECK:STDOUT:   extend %VirtualIntermediate.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @VirtualBase.vtable {
// CHECK:STDOUT:   @VirtualBase.%VirtualBase.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @VirtualIntermediate.vtable {
// CHECK:STDOUT:   constants.%VirtualBase.F
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @VirtualBase.F(%self.param: %VirtualBase);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @VirtualBase.as.Destroy.impl.Op(%self.param: %ptr.e57) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @VirtualIntermediate.as.Destroy.impl.Op(%self.param: %ptr.7dc) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @Derived.F(%self.param: %Derived);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_impl_mismatch.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %pattern_type.bcc: type = pattern_type %Base [concrete]
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F [concrete]
// CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
// CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
// CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
// CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %Base} [concrete]
// CHECK:STDOUT:   %complete_type.15c: <witness> = complete_type_witness %struct_type.base [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     .Int = %Core.Int
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: type = class_decl @Base [concrete = constants.%Base] {} {}
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Base.as.Destroy.impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.decl: %Base.as.Destroy.impl.Op.type = fn_decl @Base.as.Destroy.impl.Op [concrete = constants.%Base.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.1b9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.1b9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.11f = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %ptr.11f = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base {
// CHECK:STDOUT:   %Base.F.decl: %Base.F.type = fn_decl @Base.F [concrete = constants.%Base.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.bcc = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.bcc = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Base = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %Base = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Base
// CHECK:STDOUT:   .F = %Base.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %Base.ref: type = name_ref Base, file.%Base.decl [concrete = constants.%Base]
// CHECK:STDOUT:   %.loc9: %Derived.elem = base_decl %Base.ref, element0 [concrete]
// CHECK:STDOUT:   %Derived.F.decl: %Derived.F.type = fn_decl @Derived.F [concrete = constants.%Derived.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %v.patt: %pattern_type.7ce = binding_pattern v [concrete]
// CHECK:STDOUT:     %v.param_patt: %pattern_type.7ce = value_param_pattern %v.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:     %v.param: %i32 = value_param call_param1
// CHECK:STDOUT:     %.loc17: type = splice_block %i32 [concrete = constants.%i32] {
// CHECK:STDOUT:       %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:       %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %v: %i32 = bind_name v, %v.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.15c]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .Base = <poisoned>
// CHECK:STDOUT:   .base = %.loc9
// CHECK:STDOUT:   .F = %Derived.F.decl
// CHECK:STDOUT:   extend %Base.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Base.F(%self.param: %Base);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Base.as.Destroy.impl.Op(%self.param: %ptr.11f) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @Derived.F(%self.param: %Derived, %v.param: %i32);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_todo_impl_conversion.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ccf: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
// CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT:   %T2: type = class_type @T2 [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.658: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.63e: type = ptr_type %T2 [concrete]
// CHECK:STDOUT:   %pattern_type.fb8: type = pattern_type %ptr.63e [concrete]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op: %T2.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
// CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
// CHECK:STDOUT:   %ImplicitAs.type.e40: type = facet_type <@ImplicitAs, @ImplicitAs(%T1)> [concrete]
// CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness file.%ImplicitAs.impl_witness_table [concrete]
// CHECK:STDOUT:   %pattern_type.682: type = pattern_type %T2 [concrete]
// CHECK:STDOUT:   %pattern_type.28b: type = pattern_type %T1 [concrete]
// CHECK:STDOUT:   %T2.as.ImplicitAs.impl.Convert.type: type = fn_type @T2.as.ImplicitAs.impl.Convert [concrete]
// CHECK:STDOUT:   %T2.as.ImplicitAs.impl.Convert: %T2.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
// CHECK:STDOUT:   %T1.val: %T1 = struct_value () [concrete]
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %pattern_type.bcc: type = pattern_type %Base [concrete]
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F [concrete]
// CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
// CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %Base} [concrete]
// CHECK:STDOUT:   %complete_type.15c: <witness> = complete_type_witness %struct_type.base [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .T2 = %T2.decl
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   %T2.decl: type = class_decl @T2 [concrete = constants.%T2] {} {}
// CHECK:STDOUT:   impl_decl @T2.as.ImplicitAs.impl [concrete] {} {
// CHECK:STDOUT:     %T2.ref: type = name_ref T2, file.%T2.decl [concrete = constants.%T2]
// CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
// CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
// CHECK:STDOUT:     %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%T1)> [concrete = constants.%ImplicitAs.type.e40]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (@T2.as.ImplicitAs.impl.%T2.as.ImplicitAs.impl.Convert.decl), @T2.as.ImplicitAs.impl [concrete]
// CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness %ImplicitAs.impl_witness_table [concrete = constants.%ImplicitAs.impl_witness]
// CHECK:STDOUT:   %Base.decl: type = class_decl @Base [concrete = constants.%Base] {} {}
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T1.as.Destroy.impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.decl: %T1.as.Destroy.impl.Op.type = fn_decl @T1.as.Destroy.impl.Op [concrete = constants.%T1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.a36 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.a36 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.87b = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:     %self: %ptr.87b = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T2.as.Destroy.impl: @T2.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.decl: %T2.as.Destroy.impl.Op.type = fn_decl @T2.as.Destroy.impl.Op [concrete = constants.%T2.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb8 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb8 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc7: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.63e = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
// CHECK:STDOUT:     %self: %ptr.63e = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %T2.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @T2.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T2.as.ImplicitAs.impl: %T2.ref as %ImplicitAs.type {
// CHECK:STDOUT:   %T2.as.ImplicitAs.impl.Convert.decl: %T2.as.ImplicitAs.impl.Convert.type = fn_decl @T2.as.ImplicitAs.impl.Convert [concrete = constants.%T2.as.ImplicitAs.impl.Convert] {
// CHECK:STDOUT:     %self.patt: %pattern_type.682 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.682 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.28b = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.28b = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:     %self.param: %T2 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @T2.as.ImplicitAs.impl.%T2.ref [concrete = constants.%T2]
// CHECK:STDOUT:     %self: %T2 = bind_name self, %self.param
// CHECK:STDOUT:     %return.param: ref %T1 = out_param call_param1
// CHECK:STDOUT:     %return: ref %T1 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .Convert = %T2.as.ImplicitAs.impl.Convert.decl
// CHECK:STDOUT:   witness = file.%ImplicitAs.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Base.as.Destroy.impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.decl: %Base.as.Destroy.impl.Op.type = fn_decl @Base.as.Destroy.impl.Op [concrete = constants.%Base.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.1b9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.1b9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc16: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.11f = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %ptr.11f = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc20: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1 {
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ccf]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%T1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T2 {
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
// CHECK:STDOUT:   impl_decl @T2.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.658]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%T2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base {
// CHECK:STDOUT:   %Base.F.decl: %Base.F.type = fn_decl @Base.F [concrete = constants.%Base.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.bcc = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.bcc = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.28b = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.28b = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:     %self.param: %Base = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:     %self: %Base = bind_name self, %self.param
// CHECK:STDOUT:     %return.param: ref %T1 = out_param call_param1
// CHECK:STDOUT:     %return: ref %T1 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
// CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Base
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .F = %Base.F.decl
// CHECK:STDOUT:   .T2 = <poisoned>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %Base.ref: type = name_ref Base, file.%Base.decl [concrete = constants.%Base]
// CHECK:STDOUT:   %.loc21: %Derived.elem = base_decl %Base.ref, element0 [concrete]
// CHECK:STDOUT:   %Derived.F.decl: %Derived.F.type = fn_decl @Derived.F [concrete = constants.%Derived.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.682 = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.682 = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %T2.ref: type = name_ref T2, file.%T2.decl [concrete = constants.%T2]
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:     %return.param: ref %T2 = out_param call_param1
// CHECK:STDOUT:     %return: ref %T2 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.15c]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .Base = <poisoned>
// CHECK:STDOUT:   .base = %.loc21
// CHECK:STDOUT:   .T2 = <poisoned>
// CHECK:STDOUT:   .F = %Derived.F.decl
// CHECK:STDOUT:   extend %Base.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T1.as.Destroy.impl.Op(%self.param: %ptr.87b) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T2.as.Destroy.impl.Op(%self.param: %ptr.63e) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T2.as.ImplicitAs.impl.Convert(%self.param: %T2) -> %return.param: %T1 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc12_13.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc12_13.2: init %T1 = class_init (), %return [concrete = constants.%T1.val]
// CHECK:STDOUT:   %.loc12_14: init %T1 = converted %.loc12_13.1, %.loc12_13.2 [concrete = constants.%T1.val]
// CHECK:STDOUT:   return %.loc12_14 to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @Base.F(%self.param: %Base) -> %return.param: %T1;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Base.as.Destroy.impl.Op(%self.param: %ptr.11f) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @Derived.F(%self.param: %Derived) -> %return.param: %T2;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_generic_virtual_decl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base [symbolic]
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base [symbolic]
// CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn: <specific function> = specific_function %Base.F, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc7_17.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_17.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Base.as.Destroy.impl.Op.decl: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = fn_decl @Base.as.Destroy.impl.Op [symbolic = @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc7_27.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = value_param call_param0
// CHECK:STDOUT:       %.loc7_27.2: type = splice_block %Self.ref [symbolic = %Base (constants.%Base)] {
// CHECK:STDOUT:         %.loc7_27.3: type = specific_constant constants.%Base, @Base(constants.%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc7_27.3 [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T.loc7_17.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_17.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T.loc7_17.1) [symbolic = %Base.F.type (constants.%Base.F.type)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type) = struct_value () [symbolic = %Base.F (constants.%Base.F)]
// CHECK:STDOUT:   %Base.F.specific_fn.loc13_1.2: <specific function> = specific_function %Base.F, @Base.F(%T.loc7_17.1) [symbolic = %Base.F.specific_fn.loc13_1.2 (constants.%Base.F.specific_fn)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.F.decl: @Base.%Base.F.type (%Base.F.type) = fn_decl @Base.F [symbolic = @Base.%Base.F (constants.%Base.F)] {
// CHECK:STDOUT:       %self.patt: @Base.F.%pattern_type (%pattern_type.9f7) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.F.%pattern_type (%pattern_type.9f7) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.F.%Base (%Base) = value_param call_param0
// CHECK:STDOUT:       %.loc12_22.1: type = splice_block %Self.ref [symbolic = %Base (constants.%Base)] {
// CHECK:STDOUT:         %.loc12_22.2: type = specific_constant constants.%Base, @Base(constants.%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc12_22.2 [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.F.%Base (%Base) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base)]
// CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:     %Base.F.specific_fn.loc13_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc13_1.2 (constants.%Base.F.specific_fn)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base
// CHECK:STDOUT:     .F = %Base.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.specific_fn.loc13_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @Base.F(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %Base [symbolic = %pattern_type (constants.%pattern_type.9f7)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @Base.F.%Base (%Base));
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Base.as.Destroy.impl.Op(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Base [symbolic = %ptr (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc7_17.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9f7
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %ptr => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- impl_generic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ccf: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
// CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.370: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base.370 [symbolic]
// CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
// CHECK:STDOUT:   %Base.F.type.f17: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
// CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.892: <specific function> = specific_function %Base.F.e26, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete.97d: <witness> = require_complete_type %Base.370 [symbolic]
// CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %Base.ea5: type = class_type @Base, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.type.d82: type = fn_type @Base.F, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.d25: %Base.F.type.d82 = struct_value () [concrete]
// CHECK:STDOUT:   %pattern_type.3bf: type = pattern_type %Base.ea5 [concrete]
// CHECK:STDOUT:   %pattern_type.28b: type = pattern_type %T1 [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.210: <specific function> = specific_function %Base.F.d25, @Base.F(%T1) [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base.ea5 [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.fda: type = struct_type {.base: %Base.ea5} [concrete]
// CHECK:STDOUT:   %complete_type.65a: <witness> = complete_type_witness %struct_type.base.fda [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc7_17.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_17.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T1.as.Destroy.impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.decl: %T1.as.Destroy.impl.Op.type = fn_decl @T1.as.Destroy.impl.Op [concrete = constants.%T1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.a36 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.a36 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.87b = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:     %self: %ptr.87b = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Base.as.Destroy.impl.Op.decl: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = fn_decl @Base.as.Destroy.impl.Op [symbolic = @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc7_27.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = value_param call_param0
// CHECK:STDOUT:       %.loc7_27.2: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc7_27.3: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc7_27.3 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc11: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1 {
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ccf]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%T1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T.loc7_17.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_17.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T.loc7_17.1) [symbolic = %Base.F.type (constants.%Base.F.type.f17)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type.f17) = struct_value () [symbolic = %Base.F (constants.%Base.F.e26)]
// CHECK:STDOUT:   %Base.F.specific_fn.loc9_1.2: <specific function> = specific_function %Base.F, @Base.F(%T.loc7_17.1) [symbolic = %Base.F.specific_fn.loc9_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.F.decl: @Base.%Base.F.type (%Base.F.type.f17) = fn_decl @Base.F [symbolic = @Base.%Base.F (constants.%Base.F.e26)] {
// CHECK:STDOUT:       %self.patt: @Base.F.%pattern_type.loc8_16 (%pattern_type.9f7) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.F.%pattern_type.loc8_16 (%pattern_type.9f7) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %t.patt: @Base.F.%pattern_type.loc8_28 (%pattern_type.7dc) = binding_pattern t [concrete]
// CHECK:STDOUT:       %t.param_patt: @Base.F.%pattern_type.loc8_28 (%pattern_type.7dc) = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.F.%Base (%Base.370) = value_param call_param0
// CHECK:STDOUT:       %.loc8_22.1: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc8_22.2: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc8_22.2 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.F.%Base (%Base.370) = bind_name self, %self.param
// CHECK:STDOUT:       %t.param: @Base.F.%T (%T) = value_param call_param1
// CHECK:STDOUT:       %T.ref: type = name_ref T, @Base.%T.loc7_17.2 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:       %t: @Base.F.%T (%T) = bind_name t, %t.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
// CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:     %Base.F.specific_fn.loc9_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc9_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base.370
// CHECK:STDOUT:     .T = <poisoned>
// CHECK:STDOUT:     .F = %Base.F.decl
// CHECK:STDOUT:     .T1 = <poisoned>
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT:   %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(constants.%T1) [concrete = constants.%Base.ea5]
// CHECK:STDOUT:   %.loc12: %Derived.elem = base_decl %Base, element0 [concrete]
// CHECK:STDOUT:   %Derived.F.decl: %Derived.F.type = fn_decl @Derived.F [concrete = constants.%Derived.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %t.patt: %pattern_type.28b = binding_pattern t [concrete]
// CHECK:STDOUT:     %t.param_patt: %pattern_type.28b = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:     %t.param: %T1 = value_param call_param1
// CHECK:STDOUT:     %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:     %t: %T1 = bind_name t, %t.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.fda [concrete = constants.%complete_type.65a]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .Base = <poisoned>
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc12
// CHECK:STDOUT:   .F = %Derived.F.decl
// CHECK:STDOUT:   extend %Base
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.specific_fn.loc9_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T1.as.Destroy.impl.Op(%self.param: %ptr.87b) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @Base.F(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %pattern_type.loc8_16: type = pattern_type %Base [symbolic = %pattern_type.loc8_16 (constants.%pattern_type.9f7)]
// CHECK:STDOUT:   %pattern_type.loc8_28: type = pattern_type %T [symbolic = %pattern_type.loc8_28 (constants.%pattern_type.7dc)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc8_20: <witness> = require_complete_type %Base [symbolic = %require_complete.loc8_20 (constants.%require_complete.97d)]
// CHECK:STDOUT:   %require_complete.loc8_29: <witness> = require_complete_type %T [symbolic = %require_complete.loc8_29 (constants.%require_complete.4ae)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @Base.F.%Base (%Base.370), %t.param: @Base.F.%T (%T)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Base.as.Destroy.impl.Op(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Base [symbolic = %ptr (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @Derived.F(%self.param: %Derived, %t.param: %T1) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc7_17.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.f17
// CHECK:STDOUT:   %Base.F => constants.%Base.F.e26
// CHECK:STDOUT:   %Base.F.specific_fn.loc9_1.2 => constants.%Base.F.specific_fn.892
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %pattern_type.loc8_16 => constants.%pattern_type.9f7
// CHECK:STDOUT:   %pattern_type.loc8_28 => constants.%pattern_type.7dc
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc8_20 => constants.%require_complete.97d
// CHECK:STDOUT:   %require_complete.loc8_29 => constants.%require_complete.4ae
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %ptr => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T1) {
// CHECK:STDOUT:   %T.loc7_17.1 => constants.%T1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.d82
// CHECK:STDOUT:   %Base.F => constants.%Base.F.d25
// CHECK:STDOUT:   %Base.F.specific_fn.loc9_1.2 => constants.%Base.F.specific_fn.210
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T1) {
// CHECK:STDOUT:   %T => constants.%T1
// CHECK:STDOUT:   %Base => constants.%Base.ea5
// CHECK:STDOUT:   %pattern_type.loc8_16 => constants.%pattern_type.3bf
// CHECK:STDOUT:   %pattern_type.loc8_28 => constants.%pattern_type.28b
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc8_20 => constants.%complete_type.513
// CHECK:STDOUT:   %require_complete.loc8_29 => constants.%complete_type.357
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_virtual_without_self.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F [concrete]
// CHECK:STDOUT:   %T1.F: %T1.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %T1.G.type: type = fn_type @T1.G [concrete]
// CHECK:STDOUT:   %T1.G: %T1.G.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ccf: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
// CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT:   %T2: type = class_type @T2 [concrete]
// CHECK:STDOUT:   %T2.elem: type = unbound_element_type %T2, %T1 [concrete]
// CHECK:STDOUT:   %T2.F.type: type = fn_type @T2.F [concrete]
// CHECK:STDOUT:   %T2.F: %T2.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.658: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.63e: type = ptr_type %T2 [concrete]
// CHECK:STDOUT:   %pattern_type.fb8: type = pattern_type %ptr.63e [concrete]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op: %T2.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %T1} [concrete]
// CHECK:STDOUT:   %complete_type.e14: <witness> = complete_type_witness %struct_type.base [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .T2 = %T2.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   %T2.decl: type = class_decl @T2 [concrete = constants.%T2] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T1.as.Destroy.impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.decl: %T1.as.Destroy.impl.Op.type = fn_decl @T1.as.Destroy.impl.Op [concrete = constants.%T1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.a36 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.a36 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.87b = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:     %self: %ptr.87b = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T2.as.Destroy.impl: @T2.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.decl: %T2.as.Destroy.impl.Op.type = fn_decl @T2.as.Destroy.impl.Op [concrete = constants.%T2.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb8 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb8 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc17: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.63e = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
// CHECK:STDOUT:     %self: %ptr.63e = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %T2.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @T2.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1 {
// CHECK:STDOUT:   %T1.F.decl: %T1.F.type = fn_decl @T1.F [concrete = constants.%T1.F] {} {}
// CHECK:STDOUT:   %T1.G.decl: %T1.G.type = fn_decl @T1.G [concrete = constants.%T1.G] {} {}
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ccf]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%T1
// CHECK:STDOUT:   .F = %T1.F.decl
// CHECK:STDOUT:   .G = %T1.G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T2 {
// CHECK:STDOUT:   %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:   %.loc18: %T2.elem = base_decl %T1.ref, element0 [concrete]
// CHECK:STDOUT:   %T2.F.decl: %T2.F.type = fn_decl @T2.F [concrete = constants.%T2.F] {} {}
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
// CHECK:STDOUT:   impl_decl @T2.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.658]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.e14]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%T2
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc18
// CHECK:STDOUT:   .F = %T2.F.decl
// CHECK:STDOUT:   extend %T1.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T1.F();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T1.G();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T1.as.Destroy.impl.Op(%self.param: %ptr.87b) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T2.F();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T2.as.Destroy.impl.Op(%self.param: %ptr.63e) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_addr_self_mismatch.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
// CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
// CHECK:STDOUT:   %T1.F1.type: type = fn_type @T1.F1 [concrete]
// CHECK:STDOUT:   %T1.F1: %T1.F1.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.ccf: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %T1.vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %T2: type = class_type @T2 [concrete]
// CHECK:STDOUT:   %T2.elem: type = unbound_element_type %T2, %T1 [concrete]
// CHECK:STDOUT:   %ptr.63e: type = ptr_type %T2 [concrete]
// CHECK:STDOUT:   %pattern_type.fb8: type = pattern_type %ptr.63e [concrete]
// CHECK:STDOUT:   %T2.F1.type: type = fn_type @T2.F1 [concrete]
// CHECK:STDOUT:   %T2.F1: %T2.F1.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.658: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op: %T2.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %T2.vtable_decl: ref %ptr.454 = vtable_decl @T2.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %T1} [concrete]
// CHECK:STDOUT:   %complete_type.e14: <witness> = complete_type_witness %struct_type.base [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .T2 = %T2.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   %T2.decl: type = class_decl @T2 [concrete = constants.%T2] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T1.as.Destroy.impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.decl: %T1.as.Destroy.impl.Op.type = fn_decl @T1.as.Destroy.impl.Op [concrete = constants.%T1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.a36 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.a36 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.87b = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:     %self: %ptr.87b = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T2.as.Destroy.impl: @T2.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.decl: %T2.as.Destroy.impl.Op.type = fn_decl @T2.as.Destroy.impl.Op [concrete = constants.%T2.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb8 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb8 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.63e = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
// CHECK:STDOUT:     %self: %ptr.63e = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %T2.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @T2.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1 {
// CHECK:STDOUT:   %T1.F1.decl: %T1.F1.type = fn_decl @T1.F1 [concrete = constants.%T1.F1] {
// CHECK:STDOUT:     %self.patt: %pattern_type.a36 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.a36 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.87b = value_param call_param0
// CHECK:STDOUT:     %.loc5: type = splice_block %ptr [concrete = constants.%ptr.87b] {
// CHECK:STDOUT:       %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:       %ptr: type = ptr_type %Self.ref [concrete = constants.%ptr.87b]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %self: %ptr.87b = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ccf]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete = constants.%T1.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%T1
// CHECK:STDOUT:   .F1 = %T1.F1.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T2 {
// CHECK:STDOUT:   %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:   %.loc9: %T2.elem = base_decl %T1.ref, element0 [concrete]
// CHECK:STDOUT:   %T2.F1.decl: %T2.F1.type = fn_decl @T2.F1 [concrete = constants.%T2.F1] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb8 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb8 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc17_14: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.63e = value_param call_param0
// CHECK:STDOUT:     %.loc17_29: type = splice_block %ptr [concrete = constants.%ptr.63e] {
// CHECK:STDOUT:       %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
// CHECK:STDOUT:       %ptr: type = ptr_type %Self.ref [concrete = constants.%ptr.63e]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %self: %ptr.63e = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
// CHECK:STDOUT:   impl_decl @T2.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.658]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @T2.vtable [concrete = constants.%T2.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.e14]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%T2
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc9
// CHECK:STDOUT:   .F1 = %T2.F1.decl
// CHECK:STDOUT:   extend %T1.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @T1.vtable {
// CHECK:STDOUT:   @T1.%T1.F1.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @T2.vtable {
// CHECK:STDOUT:   @T2.%T2.F1.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @T1.F1(%self.param: %ptr.87b);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T1.as.Destroy.impl.Op(%self.param: %ptr.87b) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @T2.F1(%self.param: %ptr.63e);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T2.as.Destroy.impl.Op(%self.param: %ptr.63e) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_generic_virtual.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %pattern_type.28b: type = pattern_type %T1 [concrete]
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F [concrete]
// CHECK:STDOUT:   %T1.F: %T1.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
// CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @T1.as.Destroy.impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.decl: %T1.as.Destroy.impl.Op.type = fn_decl @T1.as.Destroy.impl.Op [concrete = constants.%T1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.a36 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.a36 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.87b = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:     %self: %ptr.87b = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1 {
// CHECK:STDOUT:   %T1.F.decl: %T1.F.type = fn_decl @T1.F [concrete = constants.%T1.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.28b = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.28b = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %T1 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:     %self: %T1 = bind_name self, %self.param
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc9_28.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_28.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
// CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%T1
// CHECK:STDOUT:   .F = %T1.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @T1.F(%T.loc9_28.2: type) {
// CHECK:STDOUT:   %T.loc9_28.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_28.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: %T1);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @T1.as.Destroy.impl.Op(%self.param: %ptr.87b) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.F(constants.%T) {
// CHECK:STDOUT:   %T.loc9_28.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_generic_virtual_in_generic_class.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %T1.type: type = generic_class_type @T1 [concrete]
// CHECK:STDOUT:   %T1.generic: %T1.type = struct_value () [concrete]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T.8b3) [symbolic]
// CHECK:STDOUT:   %pattern_type.48e: type = pattern_type %T1 [symbolic]
// CHECK:STDOUT:   %T.336: type = bind_symbolic_name T, 1 [symbolic]
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%T.8b3) [symbolic]
// CHECK:STDOUT:   %T1.F: %T1.F.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%T.8b3) [symbolic]
// CHECK:STDOUT:   %ptr.997: type = ptr_type %T1 [symbolic]
// CHECK:STDOUT:   %pattern_type.f06: type = pattern_type %ptr.997 [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%T.8b3) [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: %T1.type = class_decl @T1 [concrete = constants.%T1.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_15.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_15.1 (constants.%T.8b3)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @T1.as.Destroy.impl(@T1.%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%T) [symbolic = %T1.as.Destroy.impl.Op.type (constants.%T1.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = struct_value () [symbolic = %T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %T1.as.Destroy.impl.Op.decl: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = fn_decl @T1.as.Destroy.impl.Op [symbolic = @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_25.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = value_param call_param0
// CHECK:STDOUT:       %.loc4_25.2: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1)] {
// CHECK:STDOUT:         %.loc4_25.3: type = specific_constant constants.%T1, @T1(constants.%T.8b3) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_25.3 [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @T1(%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T.loc4_15.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_15.1 (constants.%T.8b3)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%T.loc4_15.1) [symbolic = %T1.F.type (constants.%T1.F.type)]
// CHECK:STDOUT:   %T1.F: @T1.%T1.F.type (%T1.F.type) = struct_value () [symbolic = %T1.F (constants.%T1.F)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T1.F.decl: @T1.%T1.F.type (%T1.F.type) = fn_decl @T1.F [symbolic = @T1.%T1.F (constants.%T1.F)] {
// CHECK:STDOUT:       %self.patt: @T1.F.%pattern_type (%pattern_type.48e) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.F.%pattern_type (%pattern_type.48e) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.F.%T1 (%T1) = value_param call_param0
// CHECK:STDOUT:       %.loc9_22.1: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1)] {
// CHECK:STDOUT:         %.loc9_22.2: type = specific_constant constants.%T1, @T1(constants.%T.8b3) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc9_22.2 [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.F.%T1 (%T1) = bind_name self, %self.param
// CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:       %T.loc9_28.2: type = bind_symbolic_name T, 1 [symbolic = %T.loc9_28.1 (constants.%T.336)]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [symbolic = @T1.as.Destroy.impl.%T1 (constants.%T1)]
// CHECK:STDOUT:     impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%T.8b3) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%T1
// CHECK:STDOUT:     .F = %T1.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @T1.F(@T1.%T.loc4_15.2: type, %T.loc9_28.2: type) {
// CHECK:STDOUT:   %T.loc9_22: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_22 (constants.%T.8b3)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T.loc9_22) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %T1 [symbolic = %pattern_type (constants.%pattern_type.48e)]
// CHECK:STDOUT:   %T.loc9_28.1: type = bind_symbolic_name T, 1 [symbolic = %T.loc9_28.1 (constants.%T.336)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @T1.F.%T1 (%T1));
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @T1.as.Destroy.impl.Op(@T1.%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %ptr: type = ptr_type %T1 [symbolic = %ptr (constants.%ptr.997)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.f06)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1(constants.%T.8b3) {
// CHECK:STDOUT:   %T.loc4_15.1 => constants.%T.8b3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.F(constants.%T.8b3, constants.%T.336) {
// CHECK:STDOUT:   %T.loc9_22 => constants.%T.8b3
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.48e
// CHECK:STDOUT:   %T.loc9_28.1 => constants.%T.336
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl(constants.%T.8b3) {
// CHECK:STDOUT:   %T => constants.%T.8b3
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl.Op(constants.%T.8b3) {
// CHECK:STDOUT:   %T => constants.%T.8b3
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %ptr => constants.%ptr.997
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f06
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- generic_with_virtual.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %T1.type: type = generic_class_type @T1 [concrete]
// CHECK:STDOUT:   %T1.generic: %T1.type = struct_value () [concrete]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.48e: type = pattern_type %T1 [symbolic]
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%T) [symbolic]
// CHECK:STDOUT:   %T1.F: %T1.F.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.997: type = ptr_type %T1 [symbolic]
// CHECK:STDOUT:   %pattern_type.f06: type = pattern_type %ptr.997 [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %T1.F.specific_fn: <specific function> = specific_function %T1.F, @T1.F(%T) [symbolic]
// CHECK:STDOUT:   %T1.vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T1 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: %T1.type = class_decl @T1 [concrete = constants.%T1.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_15.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_15.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @T1.as.Destroy.impl(@T1.%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%T) [symbolic = %T1.as.Destroy.impl.Op.type (constants.%T1.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = struct_value () [symbolic = %T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %T1.as.Destroy.impl.Op.decl: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = fn_decl @T1.as.Destroy.impl.Op [symbolic = @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_25.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = value_param call_param0
// CHECK:STDOUT:       %.loc4_25.2: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1)] {
// CHECK:STDOUT:         %.loc4_25.3: type = specific_constant constants.%T1, @T1(constants.%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_25.3 [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @T1(%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T.loc4_15.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_15.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%T.loc4_15.1) [symbolic = %T1.F.type (constants.%T1.F.type)]
// CHECK:STDOUT:   %T1.F: @T1.%T1.F.type (%T1.F.type) = struct_value () [symbolic = %T1.F (constants.%T1.F)]
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2: <specific function> = specific_function %T1.F, @T1.F(%T.loc4_15.1) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T1.F.decl: @T1.%T1.F.type (%T1.F.type) = fn_decl @T1.F [symbolic = @T1.%T1.F (constants.%T1.F)] {
// CHECK:STDOUT:       %self.patt: @T1.F.%pattern_type (%pattern_type.48e) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.F.%pattern_type (%pattern_type.48e) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.F.%T1 (%T1) = value_param call_param0
// CHECK:STDOUT:       %.loc5_22.1: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1)] {
// CHECK:STDOUT:         %.loc5_22.2: type = specific_constant constants.%T1, @T1(constants.%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_22.2 [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.F.%T1 (%T1) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [symbolic = @T1.as.Destroy.impl.%T1 (constants.%T1)]
// CHECK:STDOUT:     impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%T) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:     %T1.F.specific_fn.loc6_1.1: <specific function> = specific_function %T1.F.decl, @T1.F(constants.%T) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete = constants.%T1.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%T1
// CHECK:STDOUT:     .F = %T1.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @T1.vtable {
// CHECK:STDOUT:   @T1.%T1.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @T1.F(@T1.%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %T1 [symbolic = %pattern_type (constants.%pattern_type.48e)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T1 [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @T1.F.%T1 (%T1)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @T1.as.Destroy.impl.Op(@T1.%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %ptr: type = ptr_type %T1 [symbolic = %ptr (constants.%ptr.997)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.f06)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1(constants.%T) {
// CHECK:STDOUT:   %T.loc4_15.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type => constants.%T1.F.type
// CHECK:STDOUT:   %T1.F => constants.%T1.F
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2 => constants.%T1.F.specific_fn
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.48e
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %ptr => constants.%ptr.997
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f06
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- with_dependent_arg.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %T1.type: type = generic_class_type @T1 [concrete]
// CHECK:STDOUT:   %T1.generic: %T1.type = struct_value () [concrete]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.48e: type = pattern_type %T1 [symbolic]
// CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%T) [symbolic]
// CHECK:STDOUT:   %T1.F: %T1.F.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.997: type = ptr_type %T1 [symbolic]
// CHECK:STDOUT:   %pattern_type.f06: type = pattern_type %ptr.997 [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %T1.F.specific_fn: <specific function> = specific_function %T1.F, @T1.F(%T) [symbolic]
// CHECK:STDOUT:   %T1.vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete.86d: <witness> = require_complete_type %T1 [symbolic]
// CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: %T1.type = class_decl @T1 [concrete = constants.%T1.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_15.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_15.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @T1.as.Destroy.impl(@T1.%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%T) [symbolic = %T1.as.Destroy.impl.Op.type (constants.%T1.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = struct_value () [symbolic = %T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %T1.as.Destroy.impl.Op.decl: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = fn_decl @T1.as.Destroy.impl.Op [symbolic = @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_25.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = value_param call_param0
// CHECK:STDOUT:       %.loc4_25.2: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1)] {
// CHECK:STDOUT:         %.loc4_25.3: type = specific_constant constants.%T1, @T1(constants.%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_25.3 [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @T1(%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T.loc4_15.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_15.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%T.loc4_15.1) [symbolic = %T1.F.type (constants.%T1.F.type)]
// CHECK:STDOUT:   %T1.F: @T1.%T1.F.type (%T1.F.type) = struct_value () [symbolic = %T1.F (constants.%T1.F)]
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2: <specific function> = specific_function %T1.F, @T1.F(%T.loc4_15.1) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T1.F.decl: @T1.%T1.F.type (%T1.F.type) = fn_decl @T1.F [symbolic = @T1.%T1.F (constants.%T1.F)] {
// CHECK:STDOUT:       %self.patt: @T1.F.%pattern_type.loc5_16 (%pattern_type.48e) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.F.%pattern_type.loc5_16 (%pattern_type.48e) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %t.patt: @T1.F.%pattern_type.loc5_28 (%pattern_type.7dc) = binding_pattern t [concrete]
// CHECK:STDOUT:       %t.param_patt: @T1.F.%pattern_type.loc5_28 (%pattern_type.7dc) = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.F.%T1 (%T1) = value_param call_param0
// CHECK:STDOUT:       %.loc5_22.1: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1)] {
// CHECK:STDOUT:         %.loc5_22.2: type = specific_constant constants.%T1, @T1(constants.%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_22.2 [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.F.%T1 (%T1) = bind_name self, %self.param
// CHECK:STDOUT:       %t.param: @T1.F.%T (%T) = value_param call_param1
// CHECK:STDOUT:       %T.ref: type = name_ref T, @T1.%T.loc4_15.2 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:       %t: @T1.F.%T (%T) = bind_name t, %t.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1 [symbolic = @T1.as.Destroy.impl.%T1 (constants.%T1)]
// CHECK:STDOUT:     impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%T) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:     %T1.F.specific_fn.loc6_1.1: <specific function> = specific_function %T1.F.decl, @T1.F(constants.%T) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete = constants.%T1.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%T1
// CHECK:STDOUT:     .T = <poisoned>
// CHECK:STDOUT:     .F = %T1.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @T1.vtable {
// CHECK:STDOUT:   @T1.%T1.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @T1.F(@T1.%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %pattern_type.loc5_16: type = pattern_type %T1 [symbolic = %pattern_type.loc5_16 (constants.%pattern_type.48e)]
// CHECK:STDOUT:   %pattern_type.loc5_28: type = pattern_type %T [symbolic = %pattern_type.loc5_28 (constants.%pattern_type.7dc)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20: <witness> = require_complete_type %T1 [symbolic = %require_complete.loc5_20 (constants.%require_complete.86d)]
// CHECK:STDOUT:   %require_complete.loc5_29: <witness> = require_complete_type %T [symbolic = %require_complete.loc5_29 (constants.%require_complete.4ae)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @T1.F.%T1 (%T1), %t.param: @T1.F.%T (%T)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @T1.as.Destroy.impl.Op(@T1.%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%T) [symbolic = %T1 (constants.%T1)]
// CHECK:STDOUT:   %ptr: type = ptr_type %T1 [symbolic = %ptr (constants.%ptr.997)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.f06)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1(constants.%T) {
// CHECK:STDOUT:   %T.loc4_15.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type => constants.%T1.F.type
// CHECK:STDOUT:   %T1.F => constants.%T1.F
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2 => constants.%T1.F.specific_fn
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %pattern_type.loc5_16 => constants.%pattern_type.48e
// CHECK:STDOUT:   %pattern_type.loc5_28 => constants.%pattern_type.7dc
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20 => constants.%require_complete.86d
// CHECK:STDOUT:   %require_complete.loc5_29 => constants.%require_complete.4ae
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T1 => constants.%T1
// CHECK:STDOUT:   %ptr => constants.%ptr.997
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f06
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- vtable_import_unneeded.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
// CHECK:STDOUT:   %ptr: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %Base [concrete]
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers: <namespace> = namespace file.%Modifiers.import, [concrete] {
// CHECK:STDOUT:     .Base = %Modifiers.Base
// CHECK:STDOUT:     import Modifiers//default
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Modifiers.Base: type = import_ref Modifiers//default, Base, loaded [concrete = constants.%Base]
// CHECK:STDOUT:   %Modifiers.import_ref.3e3fbe.2 = import_ref Modifiers//default, loc6_1, unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.05e: <witness> = import_ref Modifiers//default, loc6_1, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT:   %Modifiers.import_ref.1f3 = import_ref Modifiers//default, inst18 [no loc], unloaded
// CHECK:STDOUT:   %Modifiers.import_ref.2cc = import_ref Modifiers//default, loc5_29, unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Modifiers = imports.%Modifiers
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Modifiers.import = import Modifiers
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT:     %b.patt: %pattern_type = binding_pattern b [concrete]
// CHECK:STDOUT:     %b.param_patt: %pattern_type = value_param_pattern %b.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %b.param: %Base = value_param call_param0
// CHECK:STDOUT:     %.loc6: type = splice_block %Base.ref [concrete = constants.%Base] {
// CHECK:STDOUT:       %Modifiers.ref: <namespace> = name_ref Modifiers, imports.%Modifiers [concrete = imports.%Modifiers]
// CHECK:STDOUT:       %Base.ref: type = name_ref Base, imports.%Modifiers.Base [concrete = constants.%Base]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %b: %Base = bind_name b, %b.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base [from "modifiers.carbon"] {
// CHECK:STDOUT:   complete_type_witness = imports.%Modifiers.import_ref.05e
// CHECK:STDOUT:   vtable_decl = imports.%Modifiers.import_ref.3e3fbe.2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%Modifiers.import_ref.1f3
// CHECK:STDOUT:   .H = imports.%Modifiers.import_ref.2cc
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%b.param: %Base);
// CHECK:STDOUT:
// CHECK:STDOUT: --- generic_derived_from_nongeneric.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %NonGenericBase: type = class_type @NonGenericBase [concrete]
// CHECK:STDOUT:   %pattern_type.0b8: type = pattern_type %NonGenericBase [concrete]
// CHECK:STDOUT:   %NonGenericBase.F1.type: type = fn_type @NonGenericBase.F1 [concrete]
// CHECK:STDOUT:   %NonGenericBase.F1: %NonGenericBase.F1.type = struct_value () [concrete]
// CHECK:STDOUT:   %NonGenericBase.F2.type: type = fn_type @NonGenericBase.F2 [concrete]
// CHECK:STDOUT:   %NonGenericBase.F2: %NonGenericBase.F2.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e51: <witness> = impl_witness @NonGenericBase.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.806: type = ptr_type %NonGenericBase [concrete]
// CHECK:STDOUT:   %pattern_type.f69: type = pattern_type %ptr.806 [concrete]
// CHECK:STDOUT:   %NonGenericBase.as.Destroy.impl.Op.type: type = fn_type @NonGenericBase.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %NonGenericBase.as.Destroy.impl.Op: %NonGenericBase.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %NonGenericBase.vtable_decl: ref %ptr.454 = vtable_decl @NonGenericBase.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %GenericDerived.type: type = generic_class_type @GenericDerived [concrete]
// CHECK:STDOUT:   %GenericDerived.generic: %GenericDerived.type = struct_value () [concrete]
// CHECK:STDOUT:   %GenericDerived: type = class_type @GenericDerived, @GenericDerived(%T) [symbolic]
// CHECK:STDOUT:   %GenericDerived.elem: type = unbound_element_type %GenericDerived, %NonGenericBase [symbolic]
// CHECK:STDOUT:   %pattern_type.061: type = pattern_type %GenericDerived [symbolic]
// CHECK:STDOUT:   %GenericDerived.F2.type: type = fn_type @GenericDerived.F2, @GenericDerived(%T) [symbolic]
// CHECK:STDOUT:   %GenericDerived.F2: %GenericDerived.F2.type = struct_value () [symbolic]
// CHECK:STDOUT:   %GenericDerived.F3.type: type = fn_type @GenericDerived.F3, @GenericDerived(%T) [symbolic]
// CHECK:STDOUT:   %GenericDerived.F3: %GenericDerived.F3.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.impl_witness.885: <witness> = impl_witness @GenericDerived.%Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.6eb: type = ptr_type %GenericDerived [symbolic]
// CHECK:STDOUT:   %pattern_type.d95: type = pattern_type %ptr.6eb [symbolic]
// CHECK:STDOUT:   %GenericDerived.as.Destroy.impl.Op.type: type = fn_type @GenericDerived.as.Destroy.impl.Op, @GenericDerived.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %GenericDerived.as.Destroy.impl.Op: %GenericDerived.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %GenericDerived.F2.specific_fn: <specific function> = specific_function %GenericDerived.F2, @GenericDerived.F2(%T) [symbolic]
// CHECK:STDOUT:   %GenericDerived.F3.specific_fn: <specific function> = specific_function %GenericDerived.F3, @GenericDerived.F3(%T) [symbolic]
// CHECK:STDOUT:   %GenericDerived.vtable_decl: ref %ptr.454 = vtable_decl @GenericDerived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.432: type = struct_type {.base: %NonGenericBase} [concrete]
// CHECK:STDOUT:   %complete_type.099: <witness> = complete_type_witness %struct_type.base.432 [concrete]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %GenericDerived [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .NonGenericBase = %NonGenericBase.decl
// CHECK:STDOUT:     .GenericDerived = %GenericDerived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %NonGenericBase.decl: type = class_decl @NonGenericBase [concrete = constants.%NonGenericBase] {} {}
// CHECK:STDOUT:   %GenericDerived.decl: %GenericDerived.type = class_decl @GenericDerived [concrete = constants.%GenericDerived.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc9_27.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_27.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @NonGenericBase.as.Destroy.impl: @NonGenericBase.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %NonGenericBase.as.Destroy.impl.Op.decl: %NonGenericBase.as.Destroy.impl.Op.type = fn_decl @NonGenericBase.as.Destroy.impl.Op [concrete = constants.%NonGenericBase.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.f69 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.f69 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc4: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.806 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%NonGenericBase [concrete = constants.%NonGenericBase]
// CHECK:STDOUT:     %self: %ptr.806 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %NonGenericBase.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @NonGenericBase.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @GenericDerived.as.Destroy.impl(@GenericDerived.%T.loc9_27.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %GenericDerived: type = class_type @GenericDerived, @GenericDerived(%T) [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @GenericDerived.%Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.885)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %GenericDerived.as.Destroy.impl.Op.type: type = fn_type @GenericDerived.as.Destroy.impl.Op, @GenericDerived.as.Destroy.impl(%T) [symbolic = %GenericDerived.as.Destroy.impl.Op.type (constants.%GenericDerived.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %GenericDerived.as.Destroy.impl.Op: @GenericDerived.as.Destroy.impl.%GenericDerived.as.Destroy.impl.Op.type (%GenericDerived.as.Destroy.impl.Op.type) = struct_value () [symbolic = %GenericDerived.as.Destroy.impl.Op (constants.%GenericDerived.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @GenericDerived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %GenericDerived.as.Destroy.impl.Op.decl: @GenericDerived.as.Destroy.impl.%GenericDerived.as.Destroy.impl.Op.type (%GenericDerived.as.Destroy.impl.Op.type) = fn_decl @GenericDerived.as.Destroy.impl.Op [symbolic = @GenericDerived.as.Destroy.impl.%GenericDerived.as.Destroy.impl.Op (constants.%GenericDerived.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @GenericDerived.as.Destroy.impl.Op.%pattern_type (%pattern_type.d95) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @GenericDerived.as.Destroy.impl.Op.%pattern_type (%pattern_type.d95) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc9_37.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @GenericDerived.as.Destroy.impl.Op.%ptr (%ptr.6eb) = value_param call_param0
// CHECK:STDOUT:       %.loc9_37.2: type = splice_block %Self.ref [symbolic = %GenericDerived (constants.%GenericDerived)] {
// CHECK:STDOUT:         %.loc9_37.3: type = specific_constant constants.%GenericDerived, @GenericDerived(constants.%T) [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc9_37.3 [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @GenericDerived.as.Destroy.impl.Op.%ptr (%ptr.6eb) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %GenericDerived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @GenericDerived.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @NonGenericBase {
// CHECK:STDOUT:   %NonGenericBase.F1.decl: %NonGenericBase.F1.type = fn_decl @NonGenericBase.F1 [concrete = constants.%NonGenericBase.F1] {
// CHECK:STDOUT:     %self.patt: %pattern_type.0b8 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.0b8 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %NonGenericBase = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%NonGenericBase [concrete = constants.%NonGenericBase]
// CHECK:STDOUT:     %self: %NonGenericBase = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %NonGenericBase.F2.decl: %NonGenericBase.F2.type = fn_decl @NonGenericBase.F2 [concrete = constants.%NonGenericBase.F2] {
// CHECK:STDOUT:     %self.patt: %pattern_type.0b8 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.0b8 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %NonGenericBase = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%NonGenericBase [concrete = constants.%NonGenericBase]
// CHECK:STDOUT:     %self: %NonGenericBase = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%NonGenericBase [concrete = constants.%NonGenericBase]
// CHECK:STDOUT:   impl_decl @NonGenericBase.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@NonGenericBase.as.Destroy.impl.%NonGenericBase.as.Destroy.impl.Op.decl), @NonGenericBase.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e51]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @NonGenericBase.vtable [concrete = constants.%NonGenericBase.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%NonGenericBase
// CHECK:STDOUT:   .F1 = %NonGenericBase.F1.decl
// CHECK:STDOUT:   .F2 = %NonGenericBase.F2.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @GenericDerived(%T.loc9_27.2: type) {
// CHECK:STDOUT:   %T.loc9_27.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_27.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %GenericDerived: type = class_type @GenericDerived, @GenericDerived(%T.loc9_27.1) [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:   %GenericDerived.elem: type = unbound_element_type %GenericDerived, constants.%NonGenericBase [symbolic = %GenericDerived.elem (constants.%GenericDerived.elem)]
// CHECK:STDOUT:   %GenericDerived.F2.type: type = fn_type @GenericDerived.F2, @GenericDerived(%T.loc9_27.1) [symbolic = %GenericDerived.F2.type (constants.%GenericDerived.F2.type)]
// CHECK:STDOUT:   %GenericDerived.F2: @GenericDerived.%GenericDerived.F2.type (%GenericDerived.F2.type) = struct_value () [symbolic = %GenericDerived.F2 (constants.%GenericDerived.F2)]
// CHECK:STDOUT:   %GenericDerived.F3.type: type = fn_type @GenericDerived.F3, @GenericDerived(%T.loc9_27.1) [symbolic = %GenericDerived.F3.type (constants.%GenericDerived.F3.type)]
// CHECK:STDOUT:   %GenericDerived.F3: @GenericDerived.%GenericDerived.F3.type (%GenericDerived.F3.type) = struct_value () [symbolic = %GenericDerived.F3 (constants.%GenericDerived.F3)]
// CHECK:STDOUT:   %GenericDerived.F2.specific_fn.loc13_1.2: <specific function> = specific_function %GenericDerived.F2, @GenericDerived.F2(%T.loc9_27.1) [symbolic = %GenericDerived.F2.specific_fn.loc13_1.2 (constants.%GenericDerived.F2.specific_fn)]
// CHECK:STDOUT:   %GenericDerived.F3.specific_fn.loc13_1.2: <specific function> = specific_function %GenericDerived.F3, @GenericDerived.F3(%T.loc9_27.1) [symbolic = %GenericDerived.F3.specific_fn.loc13_1.2 (constants.%GenericDerived.F3.specific_fn)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %NonGenericBase.ref: type = name_ref NonGenericBase, file.%NonGenericBase.decl [concrete = constants.%NonGenericBase]
// CHECK:STDOUT:     %.loc10: @GenericDerived.%GenericDerived.elem (%GenericDerived.elem) = base_decl %NonGenericBase.ref, element0 [concrete]
// CHECK:STDOUT:     %GenericDerived.F2.decl: @GenericDerived.%GenericDerived.F2.type (%GenericDerived.F2.type) = fn_decl @GenericDerived.F2 [symbolic = @GenericDerived.%GenericDerived.F2 (constants.%GenericDerived.F2)] {
// CHECK:STDOUT:       %self.patt: @GenericDerived.F2.%pattern_type (%pattern_type.061) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @GenericDerived.F2.%pattern_type (%pattern_type.061) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @GenericDerived.F2.%GenericDerived (%GenericDerived) = value_param call_param0
// CHECK:STDOUT:       %.loc11_20.1: type = splice_block %Self.ref [symbolic = %GenericDerived (constants.%GenericDerived)] {
// CHECK:STDOUT:         %.loc11_20.2: type = specific_constant constants.%GenericDerived, @GenericDerived(constants.%T) [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc11_20.2 [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @GenericDerived.F2.%GenericDerived (%GenericDerived) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %GenericDerived.F3.decl: @GenericDerived.%GenericDerived.F3.type (%GenericDerived.F3.type) = fn_decl @GenericDerived.F3 [symbolic = @GenericDerived.%GenericDerived.F3 (constants.%GenericDerived.F3)] {
// CHECK:STDOUT:       %self.patt: @GenericDerived.F3.%pattern_type (%pattern_type.061) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @GenericDerived.F3.%pattern_type (%pattern_type.061) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @GenericDerived.F3.%GenericDerived (%GenericDerived) = value_param call_param0
// CHECK:STDOUT:       %.loc12_23.1: type = splice_block %Self.ref [symbolic = %GenericDerived (constants.%GenericDerived)] {
// CHECK:STDOUT:         %.loc12_23.2: type = specific_constant constants.%GenericDerived, @GenericDerived(constants.%T) [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc12_23.2 [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @GenericDerived.F3.%GenericDerived (%GenericDerived) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%GenericDerived [symbolic = @GenericDerived.as.Destroy.impl.%GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:     impl_decl @GenericDerived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@GenericDerived.as.Destroy.impl.%GenericDerived.as.Destroy.impl.Op.decl), @GenericDerived.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(constants.%T) [symbolic = @GenericDerived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.885)]
// CHECK:STDOUT:     %GenericDerived.F2.specific_fn.loc13_1.1: <specific function> = specific_function %GenericDerived.F2.decl, @GenericDerived.F2(constants.%T) [symbolic = %GenericDerived.F2.specific_fn.loc13_1.2 (constants.%GenericDerived.F2.specific_fn)]
// CHECK:STDOUT:     %GenericDerived.F3.specific_fn.loc13_1.1: <specific function> = specific_function %GenericDerived.F3.decl, @GenericDerived.F3(constants.%T) [symbolic = %GenericDerived.F3.specific_fn.loc13_1.2 (constants.%GenericDerived.F3.specific_fn)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @GenericDerived.vtable [concrete = constants.%GenericDerived.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.base.432 [concrete = constants.%complete_type.099]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%GenericDerived
// CHECK:STDOUT:     .NonGenericBase = <poisoned>
// CHECK:STDOUT:     .base = %.loc10
// CHECK:STDOUT:     .F2 = %GenericDerived.F2.decl
// CHECK:STDOUT:     .F3 = %GenericDerived.F3.decl
// CHECK:STDOUT:     extend %NonGenericBase.ref
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @NonGenericBase.vtable {
// CHECK:STDOUT:   @NonGenericBase.%NonGenericBase.F1.decl
// CHECK:STDOUT:   @NonGenericBase.%NonGenericBase.F2.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @GenericDerived.vtable {
// CHECK:STDOUT:   constants.%NonGenericBase.F1
// CHECK:STDOUT:   @GenericDerived.%GenericDerived.F2.specific_fn.loc13_1.1
// CHECK:STDOUT:   @GenericDerived.%GenericDerived.F3.specific_fn.loc13_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @NonGenericBase.F1(%self.param: %NonGenericBase) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @NonGenericBase.F2(%self.param: %NonGenericBase) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @NonGenericBase.as.Destroy.impl.Op(%self.param: %ptr.806) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl fn @GenericDerived.F2(@GenericDerived.%T.loc9_27.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %GenericDerived: type = class_type @GenericDerived, @GenericDerived(%T) [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %GenericDerived [symbolic = %pattern_type (constants.%pattern_type.061)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %GenericDerived [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl fn(%self.param: @GenericDerived.F2.%GenericDerived (%GenericDerived)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @GenericDerived.F3(@GenericDerived.%T.loc9_27.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %GenericDerived: type = class_type @GenericDerived, @GenericDerived(%T) [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %GenericDerived [symbolic = %pattern_type (constants.%pattern_type.061)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %GenericDerived [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @GenericDerived.F3.%GenericDerived (%GenericDerived)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @GenericDerived.as.Destroy.impl.Op(@GenericDerived.%T.loc9_27.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %GenericDerived: type = class_type @GenericDerived, @GenericDerived(%T) [symbolic = %GenericDerived (constants.%GenericDerived)]
// CHECK:STDOUT:   %ptr: type = ptr_type %GenericDerived [symbolic = %ptr (constants.%ptr.6eb)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.d95)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @GenericDerived.as.Destroy.impl.Op.%ptr (%ptr.6eb)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericDerived(constants.%T) {
// CHECK:STDOUT:   %T.loc9_27.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %GenericDerived => constants.%GenericDerived
// CHECK:STDOUT:   %GenericDerived.elem => constants.%GenericDerived.elem
// CHECK:STDOUT:   %GenericDerived.F2.type => constants.%GenericDerived.F2.type
// CHECK:STDOUT:   %GenericDerived.F2 => constants.%GenericDerived.F2
// CHECK:STDOUT:   %GenericDerived.F3.type => constants.%GenericDerived.F3.type
// CHECK:STDOUT:   %GenericDerived.F3 => constants.%GenericDerived.F3
// CHECK:STDOUT:   %GenericDerived.F2.specific_fn.loc13_1.2 => constants.%GenericDerived.F2.specific_fn
// CHECK:STDOUT:   %GenericDerived.F3.specific_fn.loc13_1.2 => constants.%GenericDerived.F3.specific_fn
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericDerived.F2(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %GenericDerived => constants.%GenericDerived
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.061
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericDerived.F3(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %GenericDerived => constants.%GenericDerived
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.061
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericDerived.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %GenericDerived => constants.%GenericDerived
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.885
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericDerived.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %GenericDerived => constants.%GenericDerived
// CHECK:STDOUT:   %ptr => constants.%ptr.6eb
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.d95
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- nongeneric_derived_from_generic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %GenericBase.type: type = generic_class_type @GenericBase [concrete]
// CHECK:STDOUT:   %GenericBase.generic: %GenericBase.type = struct_value () [concrete]
// CHECK:STDOUT:   %GenericBase.018: type = class_type @GenericBase, @GenericBase(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.34e: type = pattern_type %GenericBase.018 [symbolic]
// CHECK:STDOUT:   %GenericBase.F1.type.2af: type = fn_type @GenericBase.F1, @GenericBase(%T) [symbolic]
// CHECK:STDOUT:   %GenericBase.F1.80a: %GenericBase.F1.type.2af = struct_value () [symbolic]
// CHECK:STDOUT:   %GenericBase.F2.type.2ca: type = fn_type @GenericBase.F2, @GenericBase(%T) [symbolic]
// CHECK:STDOUT:   %GenericBase.F2.414: %GenericBase.F2.type.2ca = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.c7e: <witness> = impl_witness @GenericBase.%Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.b68: type = ptr_type %GenericBase.018 [symbolic]
// CHECK:STDOUT:   %pattern_type.bbc: type = pattern_type %ptr.b68 [symbolic]
// CHECK:STDOUT:   %GenericBase.as.Destroy.impl.Op.type: type = fn_type @GenericBase.as.Destroy.impl.Op, @GenericBase.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %GenericBase.as.Destroy.impl.Op: %GenericBase.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %GenericBase.F1.specific_fn.aea: <specific function> = specific_function %GenericBase.F1.80a, @GenericBase.F1(%T) [symbolic]
// CHECK:STDOUT:   %GenericBase.F2.specific_fn.758: <specific function> = specific_function %GenericBase.F2.414, @GenericBase.F2(%T) [symbolic]
// CHECK:STDOUT:   %GenericBase.vtable_decl: ref %ptr.454 = vtable_decl @GenericBase.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %GenericBase.018 [symbolic]
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %NonGenericDerived: type = class_type @NonGenericDerived [concrete]
// CHECK:STDOUT:   %GenericBase.f84: type = class_type @GenericBase, @GenericBase(%T1) [concrete]
// CHECK:STDOUT:   %GenericBase.F1.type.648: type = fn_type @GenericBase.F1, @GenericBase(%T1) [concrete]
// CHECK:STDOUT:   %GenericBase.F1.4d3: %GenericBase.F1.type.648 = struct_value () [concrete]
// CHECK:STDOUT:   %GenericBase.F2.type.d79: type = fn_type @GenericBase.F2, @GenericBase(%T1) [concrete]
// CHECK:STDOUT:   %GenericBase.F2.d59: %GenericBase.F2.type.d79 = struct_value () [concrete]
// CHECK:STDOUT:   %pattern_type.7a9: type = pattern_type %GenericBase.f84 [concrete]
// CHECK:STDOUT:   %GenericBase.F1.specific_fn.094: <specific function> = specific_function %GenericBase.F1.4d3, @GenericBase.F1(%T1) [concrete]
// CHECK:STDOUT:   %GenericBase.F2.specific_fn.b8b: <specific function> = specific_function %GenericBase.F2.d59, @GenericBase.F2(%T1) [concrete]
// CHECK:STDOUT:   %NonGenericDerived.elem: type = unbound_element_type %NonGenericDerived, %GenericBase.f84 [concrete]
// CHECK:STDOUT:   %pattern_type.5fc: type = pattern_type %NonGenericDerived [concrete]
// CHECK:STDOUT:   %NonGenericDerived.F2.type: type = fn_type @NonGenericDerived.F2 [concrete]
// CHECK:STDOUT:   %NonGenericDerived.F2: %NonGenericDerived.F2.type = struct_value () [concrete]
// CHECK:STDOUT:   %NonGenericDerived.F3.type: type = fn_type @NonGenericDerived.F3 [concrete]
// CHECK:STDOUT:   %NonGenericDerived.F3: %NonGenericDerived.F3.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.330: <witness> = impl_witness @NonGenericDerived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.821: type = ptr_type %NonGenericDerived [concrete]
// CHECK:STDOUT:   %pattern_type.eb2: type = pattern_type %ptr.821 [concrete]
// CHECK:STDOUT:   %NonGenericDerived.as.Destroy.impl.Op.type: type = fn_type @NonGenericDerived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %NonGenericDerived.as.Destroy.impl.Op: %NonGenericDerived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %NonGenericDerived.vtable_decl: ref %ptr.454 = vtable_decl @NonGenericDerived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.29a: type = struct_type {.base: %GenericBase.f84} [concrete]
// CHECK:STDOUT:   %complete_type.b6e: <witness> = complete_type_witness %struct_type.base.29a [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .GenericBase = %GenericBase.decl
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .NonGenericDerived = %NonGenericDerived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %GenericBase.decl: %GenericBase.type = class_decl @GenericBase [concrete = constants.%GenericBase.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_24.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_24.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   %NonGenericDerived.decl: type = class_decl @NonGenericDerived [concrete = constants.%NonGenericDerived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @GenericBase.as.Destroy.impl(@GenericBase.%T.loc4_24.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %GenericBase: type = class_type @GenericBase, @GenericBase(%T) [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @GenericBase.%Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.c7e)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %GenericBase.as.Destroy.impl.Op.type: type = fn_type @GenericBase.as.Destroy.impl.Op, @GenericBase.as.Destroy.impl(%T) [symbolic = %GenericBase.as.Destroy.impl.Op.type (constants.%GenericBase.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %GenericBase.as.Destroy.impl.Op: @GenericBase.as.Destroy.impl.%GenericBase.as.Destroy.impl.Op.type (%GenericBase.as.Destroy.impl.Op.type) = struct_value () [symbolic = %GenericBase.as.Destroy.impl.Op (constants.%GenericBase.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @GenericBase.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %GenericBase.as.Destroy.impl.Op.decl: @GenericBase.as.Destroy.impl.%GenericBase.as.Destroy.impl.Op.type (%GenericBase.as.Destroy.impl.Op.type) = fn_decl @GenericBase.as.Destroy.impl.Op [symbolic = @GenericBase.as.Destroy.impl.%GenericBase.as.Destroy.impl.Op (constants.%GenericBase.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @GenericBase.as.Destroy.impl.Op.%pattern_type (%pattern_type.bbc) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @GenericBase.as.Destroy.impl.Op.%pattern_type (%pattern_type.bbc) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_34.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @GenericBase.as.Destroy.impl.Op.%ptr (%ptr.b68) = value_param call_param0
// CHECK:STDOUT:       %.loc4_34.2: type = splice_block %Self.ref [symbolic = %GenericBase (constants.%GenericBase.018)] {
// CHECK:STDOUT:         %.loc4_34.3: type = specific_constant constants.%GenericBase.018, @GenericBase(constants.%T) [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_34.3 [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @GenericBase.as.Destroy.impl.Op.%ptr (%ptr.b68) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %GenericBase.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @GenericBase.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @NonGenericDerived.as.Destroy.impl: @NonGenericDerived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %NonGenericDerived.as.Destroy.impl.Op.decl: %NonGenericDerived.as.Destroy.impl.Op.type = fn_decl @NonGenericDerived.as.Destroy.impl.Op [concrete = constants.%NonGenericDerived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.eb2 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.eb2 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc11: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.821 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%NonGenericDerived [concrete = constants.%NonGenericDerived]
// CHECK:STDOUT:     %self: %ptr.821 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %NonGenericDerived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @NonGenericDerived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @GenericBase(%T.loc4_24.2: type) {
// CHECK:STDOUT:   %T.loc4_24.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_24.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %GenericBase.F1.type: type = fn_type @GenericBase.F1, @GenericBase(%T.loc4_24.1) [symbolic = %GenericBase.F1.type (constants.%GenericBase.F1.type.2af)]
// CHECK:STDOUT:   %GenericBase.F1: @GenericBase.%GenericBase.F1.type (%GenericBase.F1.type.2af) = struct_value () [symbolic = %GenericBase.F1 (constants.%GenericBase.F1.80a)]
// CHECK:STDOUT:   %GenericBase.F2.type: type = fn_type @GenericBase.F2, @GenericBase(%T.loc4_24.1) [symbolic = %GenericBase.F2.type (constants.%GenericBase.F2.type.2ca)]
// CHECK:STDOUT:   %GenericBase.F2: @GenericBase.%GenericBase.F2.type (%GenericBase.F2.type.2ca) = struct_value () [symbolic = %GenericBase.F2 (constants.%GenericBase.F2.414)]
// CHECK:STDOUT:   %GenericBase.F1.specific_fn.loc7_1.2: <specific function> = specific_function %GenericBase.F1, @GenericBase.F1(%T.loc4_24.1) [symbolic = %GenericBase.F1.specific_fn.loc7_1.2 (constants.%GenericBase.F1.specific_fn.aea)]
// CHECK:STDOUT:   %GenericBase.F2.specific_fn.loc7_1.2: <specific function> = specific_function %GenericBase.F2, @GenericBase.F2(%T.loc4_24.1) [symbolic = %GenericBase.F2.specific_fn.loc7_1.2 (constants.%GenericBase.F2.specific_fn.758)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %GenericBase.F1.decl: @GenericBase.%GenericBase.F1.type (%GenericBase.F1.type.2af) = fn_decl @GenericBase.F1 [symbolic = @GenericBase.%GenericBase.F1 (constants.%GenericBase.F1.80a)] {
// CHECK:STDOUT:       %self.patt: @GenericBase.F1.%pattern_type (%pattern_type.34e) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @GenericBase.F1.%pattern_type (%pattern_type.34e) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @GenericBase.F1.%GenericBase (%GenericBase.018) = value_param call_param0
// CHECK:STDOUT:       %.loc5_23.1: type = splice_block %Self.ref [symbolic = %GenericBase (constants.%GenericBase.018)] {
// CHECK:STDOUT:         %.loc5_23.2: type = specific_constant constants.%GenericBase.018, @GenericBase(constants.%T) [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_23.2 [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @GenericBase.F1.%GenericBase (%GenericBase.018) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %GenericBase.F2.decl: @GenericBase.%GenericBase.F2.type (%GenericBase.F2.type.2ca) = fn_decl @GenericBase.F2 [symbolic = @GenericBase.%GenericBase.F2 (constants.%GenericBase.F2.414)] {
// CHECK:STDOUT:       %self.patt: @GenericBase.F2.%pattern_type (%pattern_type.34e) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @GenericBase.F2.%pattern_type (%pattern_type.34e) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @GenericBase.F2.%GenericBase (%GenericBase.018) = value_param call_param0
// CHECK:STDOUT:       %.loc6_23.1: type = splice_block %Self.ref [symbolic = %GenericBase (constants.%GenericBase.018)] {
// CHECK:STDOUT:         %.loc6_23.2: type = specific_constant constants.%GenericBase.018, @GenericBase(constants.%T) [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc6_23.2 [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @GenericBase.F2.%GenericBase (%GenericBase.018) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%GenericBase.018 [symbolic = @GenericBase.as.Destroy.impl.%GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:     impl_decl @GenericBase.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@GenericBase.as.Destroy.impl.%GenericBase.as.Destroy.impl.Op.decl), @GenericBase.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(constants.%T) [symbolic = @GenericBase.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.c7e)]
// CHECK:STDOUT:     %GenericBase.F1.specific_fn.loc7_1.1: <specific function> = specific_function %GenericBase.F1.decl, @GenericBase.F1(constants.%T) [symbolic = %GenericBase.F1.specific_fn.loc7_1.2 (constants.%GenericBase.F1.specific_fn.aea)]
// CHECK:STDOUT:     %GenericBase.F2.specific_fn.loc7_1.1: <specific function> = specific_function %GenericBase.F2.decl, @GenericBase.F2(constants.%T) [symbolic = %GenericBase.F2.specific_fn.loc7_1.2 (constants.%GenericBase.F2.specific_fn.758)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @GenericBase.vtable [concrete = constants.%GenericBase.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%GenericBase.018
// CHECK:STDOUT:     .F1 = %GenericBase.F1.decl
// CHECK:STDOUT:     .F2 = %GenericBase.F2.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1;
// CHECK:STDOUT:
// CHECK:STDOUT: class @NonGenericDerived {
// CHECK:STDOUT:   %GenericBase.ref: %GenericBase.type = name_ref GenericBase, file.%GenericBase.decl [concrete = constants.%GenericBase.generic]
// CHECK:STDOUT:   %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:   %GenericBase: type = class_type @GenericBase, @GenericBase(constants.%T1) [concrete = constants.%GenericBase.f84]
// CHECK:STDOUT:   %.loc12: %NonGenericDerived.elem = base_decl %GenericBase, element0 [concrete]
// CHECK:STDOUT:   %NonGenericDerived.F2.decl: %NonGenericDerived.F2.type = fn_decl @NonGenericDerived.F2 [concrete = constants.%NonGenericDerived.F2] {
// CHECK:STDOUT:     %self.patt: %pattern_type.5fc = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.5fc = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %NonGenericDerived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%NonGenericDerived [concrete = constants.%NonGenericDerived]
// CHECK:STDOUT:     %self: %NonGenericDerived = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %NonGenericDerived.F3.decl: %NonGenericDerived.F3.type = fn_decl @NonGenericDerived.F3 [concrete = constants.%NonGenericDerived.F3] {
// CHECK:STDOUT:     %self.patt: %pattern_type.5fc = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.5fc = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %NonGenericDerived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%NonGenericDerived [concrete = constants.%NonGenericDerived]
// CHECK:STDOUT:     %self: %NonGenericDerived = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%NonGenericDerived [concrete = constants.%NonGenericDerived]
// CHECK:STDOUT:   impl_decl @NonGenericDerived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@NonGenericDerived.as.Destroy.impl.%NonGenericDerived.as.Destroy.impl.Op.decl), @NonGenericDerived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.330]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @NonGenericDerived.vtable [concrete = constants.%NonGenericDerived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.29a [concrete = constants.%complete_type.b6e]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%NonGenericDerived
// CHECK:STDOUT:   .GenericBase = <poisoned>
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc12
// CHECK:STDOUT:   .F2 = %NonGenericDerived.F2.decl
// CHECK:STDOUT:   .F3 = %NonGenericDerived.F3.decl
// CHECK:STDOUT:   extend %GenericBase
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @GenericBase.vtable {
// CHECK:STDOUT:   @GenericBase.%GenericBase.F1.specific_fn.loc7_1.1
// CHECK:STDOUT:   @GenericBase.%GenericBase.F2.specific_fn.loc7_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @NonGenericDerived.vtable {
// CHECK:STDOUT:   constants.%GenericBase.F1.specific_fn.094
// CHECK:STDOUT:   @NonGenericDerived.%NonGenericDerived.F2.decl
// CHECK:STDOUT:   @NonGenericDerived.%NonGenericDerived.F3.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @GenericBase.F1(@GenericBase.%T.loc4_24.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %GenericBase: type = class_type @GenericBase, @GenericBase(%T) [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %GenericBase [symbolic = %pattern_type (constants.%pattern_type.34e)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %GenericBase [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @GenericBase.F1.%GenericBase (%GenericBase.018)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @GenericBase.F2(@GenericBase.%T.loc4_24.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %GenericBase: type = class_type @GenericBase, @GenericBase(%T) [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %GenericBase [symbolic = %pattern_type (constants.%pattern_type.34e)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %GenericBase [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @GenericBase.F2.%GenericBase (%GenericBase.018)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @GenericBase.as.Destroy.impl.Op(@GenericBase.%T.loc4_24.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %GenericBase: type = class_type @GenericBase, @GenericBase(%T) [symbolic = %GenericBase (constants.%GenericBase.018)]
// CHECK:STDOUT:   %ptr: type = ptr_type %GenericBase [symbolic = %ptr (constants.%ptr.b68)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.bbc)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @GenericBase.as.Destroy.impl.Op.%ptr (%ptr.b68)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @NonGenericDerived.F2(%self.param: %NonGenericDerived) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: virtual fn @NonGenericDerived.F3(%self.param: %NonGenericDerived) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @NonGenericDerived.as.Destroy.impl.Op(%self.param: %ptr.821) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericBase(constants.%T) {
// CHECK:STDOUT:   %T.loc4_24.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %GenericBase.F1.type => constants.%GenericBase.F1.type.2af
// CHECK:STDOUT:   %GenericBase.F1 => constants.%GenericBase.F1.80a
// CHECK:STDOUT:   %GenericBase.F2.type => constants.%GenericBase.F2.type.2ca
// CHECK:STDOUT:   %GenericBase.F2 => constants.%GenericBase.F2.414
// CHECK:STDOUT:   %GenericBase.F1.specific_fn.loc7_1.2 => constants.%GenericBase.F1.specific_fn.aea
// CHECK:STDOUT:   %GenericBase.F2.specific_fn.loc7_1.2 => constants.%GenericBase.F2.specific_fn.758
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericBase.F1(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %GenericBase => constants.%GenericBase.018
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.34e
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericBase.F2(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %GenericBase => constants.%GenericBase.018
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.34e
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericBase.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %GenericBase => constants.%GenericBase.018
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c7e
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericBase.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %GenericBase => constants.%GenericBase.018
// CHECK:STDOUT:   %ptr => constants.%ptr.b68
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.bbc
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericBase(constants.%T1) {
// CHECK:STDOUT:   %T.loc4_24.1 => constants.%T1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %GenericBase.F1.type => constants.%GenericBase.F1.type.648
// CHECK:STDOUT:   %GenericBase.F1 => constants.%GenericBase.F1.4d3
// CHECK:STDOUT:   %GenericBase.F2.type => constants.%GenericBase.F2.type.d79
// CHECK:STDOUT:   %GenericBase.F2 => constants.%GenericBase.F2.d59
// CHECK:STDOUT:   %GenericBase.F1.specific_fn.loc7_1.2 => constants.%GenericBase.F1.specific_fn.094
// CHECK:STDOUT:   %GenericBase.F2.specific_fn.loc7_1.2 => constants.%GenericBase.F2.specific_fn.b8b
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericBase.F1(constants.%T1) {
// CHECK:STDOUT:   %T => constants.%T1
// CHECK:STDOUT:   %GenericBase => constants.%GenericBase.f84
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7a9
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%complete_type.513
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericBase.F2(constants.%T1) {
// CHECK:STDOUT:   %T => constants.%T1
// CHECK:STDOUT:   %GenericBase => constants.%GenericBase.f84
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7a9
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%complete_type.513
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- impl_generic_specifically.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.370: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base.370 [symbolic]
// CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
// CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %Base.F.type.f17: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.892: <specific function> = specific_function %Base.F.e26, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete.97d: <witness> = require_complete_type %Base.370 [symbolic]
// CHECK:STDOUT:   %require_complete.cbc: <witness> = require_complete_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %D1: type = class_type @D1 [concrete]
// CHECK:STDOUT:   %Base.ea5: type = class_type @Base, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.type.d82: type = fn_type @Base.F, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.d25: %Base.F.type.d82 = struct_value () [concrete]
// CHECK:STDOUT:   %pattern_type.3bf: type = pattern_type %Base.ea5 [concrete]
// CHECK:STDOUT:   %ptr.184: type = ptr_type %Base.ea5 [concrete]
// CHECK:STDOUT:   %pattern_type.04d: type = pattern_type %ptr.184 [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.210: <specific function> = specific_function %Base.F.d25, @Base.F(%T1) [concrete]
// CHECK:STDOUT:   %D1.elem: type = unbound_element_type %D1, %Base.ea5 [concrete]
// CHECK:STDOUT:   %pattern_type.550: type = pattern_type %D1 [concrete]
// CHECK:STDOUT:   %D1.F.type: type = fn_type @D1.F [concrete]
// CHECK:STDOUT:   %D1.F: %D1.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.087: <witness> = impl_witness @D1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.7a4: type = ptr_type %D1 [concrete]
// CHECK:STDOUT:   %pattern_type.138: type = pattern_type %ptr.7a4 [concrete]
// CHECK:STDOUT:   %D1.as.Destroy.impl.Op.type: type = fn_type @D1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %D1.as.Destroy.impl.Op: %D1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %D1.vtable_decl: ref %ptr.454 = vtable_decl @D1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.fda: type = struct_type {.base: %Base.ea5} [concrete]
// CHECK:STDOUT:   %complete_type.65a: <witness> = complete_type_witness %struct_type.base.fda [concrete]
// CHECK:STDOUT:   %complete_type.093: <witness> = complete_type_witness %ptr.184 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .D1 = %D1.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_17.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_17.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   %D1.decl: type = class_decl @D1 [concrete = constants.%D1] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Base.as.Destroy.impl.Op.decl: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = fn_decl @Base.as.Destroy.impl.Op [symbolic = @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_27.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = value_param call_param0
// CHECK:STDOUT:       %.loc4_27.2: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc4_27.3: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_27.3 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @D1.as.Destroy.impl: @D1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %D1.as.Destroy.impl.Op.decl: %D1.as.Destroy.impl.Op.type = fn_decl @D1.as.Destroy.impl.Op [concrete = constants.%D1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.138 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.138 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.7a4 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%D1 [concrete = constants.%D1]
// CHECK:STDOUT:     %self: %ptr.7a4 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %D1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @D1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc4_17.2: type) {
// CHECK:STDOUT:   %T.loc4_17.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_17.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T.loc4_17.1) [symbolic = %Base.F.type (constants.%Base.F.type.f17)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type.f17) = struct_value () [symbolic = %Base.F (constants.%Base.F.e26)]
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2: <specific function> = specific_function %Base.F, @Base.F(%T.loc4_17.1) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.F.decl: @Base.%Base.F.type (%Base.F.type.f17) = fn_decl @Base.F [symbolic = @Base.%Base.F (constants.%Base.F.e26)] {
// CHECK:STDOUT:       %self.patt: @Base.F.%pattern_type.loc5_16 (%pattern_type.9f7) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.F.%pattern_type.loc5_16 (%pattern_type.9f7) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %t.patt: @Base.F.%pattern_type.loc5_28 (%pattern_type.8d4) = binding_pattern t [concrete]
// CHECK:STDOUT:       %t.param_patt: @Base.F.%pattern_type.loc5_28 (%pattern_type.8d4) = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.F.%Base.loc5_22 (%Base.370) = value_param call_param0
// CHECK:STDOUT:       %.loc5_22.1: type = splice_block %Self.ref [symbolic = %Base.loc5_22 (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc5_22.2: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base.loc5_22 (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_22.2 [symbolic = %Base.loc5_22 (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.F.%Base.loc5_22 (%Base.370) = bind_name self, %self.param
// CHECK:STDOUT:       %t.param: @Base.F.%ptr.loc5_38.1 (%ptr.b7c) = value_param call_param1
// CHECK:STDOUT:       %.loc5_38: type = splice_block %ptr.loc5_38.2 [symbolic = %ptr.loc5_38.1 (constants.%ptr.b7c)] {
// CHECK:STDOUT:         %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT:         %T.ref: type = name_ref T, @Base.%T.loc4_17.2 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:         %Base.loc5_37: type = class_type @Base, @Base(constants.%T) [symbolic = %Base.loc5_22 (constants.%Base.370)]
// CHECK:STDOUT:         %ptr.loc5_38.2: type = ptr_type %Base.loc5_37 [symbolic = %ptr.loc5_38.1 (constants.%ptr.b7c)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %t: @Base.F.%ptr.loc5_38.1 (%ptr.b7c) = bind_name t, %t.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
// CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base.370
// CHECK:STDOUT:     .Base = <poisoned>
// CHECK:STDOUT:     .T = <poisoned>
// CHECK:STDOUT:     .F = %Base.F.decl
// CHECK:STDOUT:     .T1 = <poisoned>
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1;
// CHECK:STDOUT:
// CHECK:STDOUT: class @D1 {
// CHECK:STDOUT:   %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT:   %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(constants.%T1) [concrete = constants.%Base.ea5]
// CHECK:STDOUT:   %.loc9: %D1.elem = base_decl %Base, element0 [concrete]
// CHECK:STDOUT:   %D1.F.decl: %D1.F.type = fn_decl @D1.F [concrete = constants.%D1.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.550 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.550 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %t.patt: %pattern_type.04d = binding_pattern t [concrete]
// CHECK:STDOUT:     %t.param_patt: %pattern_type.04d = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %D1 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%D1 [concrete = constants.%D1]
// CHECK:STDOUT:     %self: %D1 = bind_name self, %self.param
// CHECK:STDOUT:     %t.param: %ptr.184 = value_param call_param1
// CHECK:STDOUT:     %.loc10: type = splice_block %ptr [concrete = constants.%ptr.184] {
// CHECK:STDOUT:       %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT:       %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:       %Base: type = class_type @Base, @Base(constants.%T1) [concrete = constants.%Base.ea5]
// CHECK:STDOUT:       %ptr: type = ptr_type %Base [concrete = constants.%ptr.184]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %t: %ptr.184 = bind_name t, %t.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D1 [concrete = constants.%D1]
// CHECK:STDOUT:   impl_decl @D1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D1.as.Destroy.impl.%D1.as.Destroy.impl.Op.decl), @D1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.087]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @D1.vtable [concrete = constants.%D1.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.fda [concrete = constants.%complete_type.65a]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%D1
// CHECK:STDOUT:   .Base = <poisoned>
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc9
// CHECK:STDOUT:   .F = %D1.F.decl
// CHECK:STDOUT:   extend %Base
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @D1.vtable {
// CHECK:STDOUT:   @D1.%D1.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @Base.F(@Base.%T.loc4_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base.loc5_22: type = class_type @Base, @Base(%T) [symbolic = %Base.loc5_22 (constants.%Base.370)]
// CHECK:STDOUT:   %pattern_type.loc5_16: type = pattern_type %Base.loc5_22 [symbolic = %pattern_type.loc5_16 (constants.%pattern_type.9f7)]
// CHECK:STDOUT:   %ptr.loc5_38.1: type = ptr_type %Base.loc5_22 [symbolic = %ptr.loc5_38.1 (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type.loc5_28: type = pattern_type %ptr.loc5_38.1 [symbolic = %pattern_type.loc5_28 (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20: <witness> = require_complete_type %Base.loc5_22 [symbolic = %require_complete.loc5_20 (constants.%require_complete.97d)]
// CHECK:STDOUT:   %require_complete.loc5_29: <witness> = require_complete_type %ptr.loc5_38.1 [symbolic = %require_complete.loc5_29 (constants.%require_complete.cbc)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @Base.F.%Base.loc5_22 (%Base.370), %t.param: @Base.F.%ptr.loc5_38.1 (%ptr.b7c)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Base.as.Destroy.impl.Op(@Base.%T.loc4_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Base [symbolic = %ptr (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @D1.F(%self.param: %D1, %t.param: %ptr.184) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @D1.as.Destroy.impl.Op(%self.param: %ptr.7a4) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc4_17.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.f17
// CHECK:STDOUT:   %Base.F => constants.%Base.F.e26
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2 => constants.%Base.F.specific_fn.892
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base.loc5_22 => constants.%Base.370
// CHECK:STDOUT:   %pattern_type.loc5_16 => constants.%pattern_type.9f7
// CHECK:STDOUT:   %ptr.loc5_38.1 => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type.loc5_28 => constants.%pattern_type.8d4
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20 => constants.%require_complete.97d
// CHECK:STDOUT:   %require_complete.loc5_29 => constants.%require_complete.cbc
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %ptr => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T1) {
// CHECK:STDOUT:   %T.loc4_17.1 => constants.%T1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.d82
// CHECK:STDOUT:   %Base.F => constants.%Base.F.d25
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2 => constants.%Base.F.specific_fn.210
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T1) {
// CHECK:STDOUT:   %T => constants.%T1
// CHECK:STDOUT:   %Base.loc5_22 => constants.%Base.ea5
// CHECK:STDOUT:   %pattern_type.loc5_16 => constants.%pattern_type.3bf
// CHECK:STDOUT:   %ptr.loc5_38.1 => constants.%ptr.184
// CHECK:STDOUT:   %pattern_type.loc5_28 => constants.%pattern_type.04d
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20 => constants.%complete_type.513
// CHECK:STDOUT:   %require_complete.loc5_29 => constants.%complete_type.093
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_impl_generic_specifically_mismatch.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %T2: type = class_type @T2 [concrete]
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.370: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base.370 [symbolic]
// CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
// CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
// CHECK:STDOUT:   %Base.F.type.f17: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
// CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.892: <specific function> = specific_function %Base.F.e26, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Base.370 [symbolic]
// CHECK:STDOUT:   %D1: type = class_type @D1 [concrete]
// CHECK:STDOUT:   %Base.ea5: type = class_type @Base, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.type.d82: type = fn_type @Base.F, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.d25: %Base.F.type.d82 = struct_value () [concrete]
// CHECK:STDOUT:   %pattern_type.3bf: type = pattern_type %Base.ea5 [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.210: <specific function> = specific_function %Base.F.d25, @Base.F(%T1) [concrete]
// CHECK:STDOUT:   %D1.elem: type = unbound_element_type %D1, %Base.ea5 [concrete]
// CHECK:STDOUT:   %pattern_type.550: type = pattern_type %D1 [concrete]
// CHECK:STDOUT:   %ptr.63e: type = ptr_type %T2 [concrete]
// CHECK:STDOUT:   %pattern_type.fb8: type = pattern_type %ptr.63e [concrete]
// CHECK:STDOUT:   %D1.F.type: type = fn_type @D1.F [concrete]
// CHECK:STDOUT:   %D1.F: %D1.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.087: <witness> = impl_witness @D1.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.7a4: type = ptr_type %D1 [concrete]
// CHECK:STDOUT:   %pattern_type.138: type = pattern_type %ptr.7a4 [concrete]
// CHECK:STDOUT:   %D1.as.Destroy.impl.Op.type: type = fn_type @D1.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %D1.as.Destroy.impl.Op: %D1.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %D1.vtable_decl: ref %ptr.454 = vtable_decl @D1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.fda: type = struct_type {.base: %Base.ea5} [concrete]
// CHECK:STDOUT:   %complete_type.65a: <witness> = complete_type_witness %struct_type.base.fda [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .T2 = %T2.decl
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .D1 = %D1.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   %T2.decl: type = class_decl @T2 [concrete = constants.%T2] {} {}
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc7_17.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_17.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %D1.decl: type = class_decl @D1 [concrete = constants.%D1] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Base.as.Destroy.impl.Op.decl: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = fn_decl @Base.as.Destroy.impl.Op [symbolic = @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc7_27.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = value_param call_param0
// CHECK:STDOUT:       %.loc7_27.2: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc7_27.3: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc7_27.3 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @D1.as.Destroy.impl: @D1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %D1.as.Destroy.impl.Op.decl: %D1.as.Destroy.impl.Op.type = fn_decl @D1.as.Destroy.impl.Op [concrete = constants.%D1.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.138 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.138 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc11: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.7a4 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%D1 [concrete = constants.%D1]
// CHECK:STDOUT:     %self: %ptr.7a4 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %D1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @D1.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1;
// CHECK:STDOUT:
// CHECK:STDOUT: class @T2;
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T.loc7_17.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_17.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T.loc7_17.1) [symbolic = %Base.F.type (constants.%Base.F.type.f17)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type.f17) = struct_value () [symbolic = %Base.F (constants.%Base.F.e26)]
// CHECK:STDOUT:   %Base.F.specific_fn.loc9_1.2: <specific function> = specific_function %Base.F, @Base.F(%T.loc7_17.1) [symbolic = %Base.F.specific_fn.loc9_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.F.decl: @Base.%Base.F.type (%Base.F.type.f17) = fn_decl @Base.F [symbolic = @Base.%Base.F (constants.%Base.F.e26)] {
// CHECK:STDOUT:       %self.patt: @Base.F.%pattern_type (%pattern_type.9f7) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.F.%pattern_type (%pattern_type.9f7) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %t.patt: %pattern_type.a36 = binding_pattern t [concrete]
// CHECK:STDOUT:       %t.param_patt: %pattern_type.a36 = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.F.%Base (%Base.370) = value_param call_param0
// CHECK:STDOUT:       %.loc8_22.1: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc8_22.2: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc8_22.2 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.F.%Base (%Base.370) = bind_name self, %self.param
// CHECK:STDOUT:       %t.param: %ptr.87b = value_param call_param1
// CHECK:STDOUT:       %.loc8_33: type = splice_block %ptr [concrete = constants.%ptr.87b] {
// CHECK:STDOUT:         %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:         %ptr: type = ptr_type %T1.ref [concrete = constants.%ptr.87b]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %t: %ptr.87b = bind_name t, %t.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
// CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:     %Base.F.specific_fn.loc9_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc9_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base.370
// CHECK:STDOUT:     .T1 = <poisoned>
// CHECK:STDOUT:     .F = %Base.F.decl
// CHECK:STDOUT:     .T2 = <poisoned>
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @D1 {
// CHECK:STDOUT:   %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT:   %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(constants.%T1) [concrete = constants.%Base.ea5]
// CHECK:STDOUT:   %.loc12: %D1.elem = base_decl %Base, element0 [concrete]
// CHECK:STDOUT:   %D1.F.decl: %D1.F.type = fn_decl @D1.F [concrete = constants.%D1.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.550 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.550 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %t.patt: %pattern_type.fb8 = binding_pattern t [concrete]
// CHECK:STDOUT:     %t.param_patt: %pattern_type.fb8 = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %D1 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%D1 [concrete = constants.%D1]
// CHECK:STDOUT:     %self: %D1 = bind_name self, %self.param
// CHECK:STDOUT:     %t.param: %ptr.63e = value_param call_param1
// CHECK:STDOUT:     %.loc20: type = splice_block %ptr [concrete = constants.%ptr.63e] {
// CHECK:STDOUT:       %T2.ref: type = name_ref T2, file.%T2.decl [concrete = constants.%T2]
// CHECK:STDOUT:       %ptr: type = ptr_type %T2.ref [concrete = constants.%ptr.63e]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %t: %ptr.63e = bind_name t, %t.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D1 [concrete = constants.%D1]
// CHECK:STDOUT:   impl_decl @D1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D1.as.Destroy.impl.%D1.as.Destroy.impl.Op.decl), @D1.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.087]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @D1.vtable [concrete = constants.%D1.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.fda [concrete = constants.%complete_type.65a]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%D1
// CHECK:STDOUT:   .Base = <poisoned>
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc12
// CHECK:STDOUT:   .T2 = <poisoned>
// CHECK:STDOUT:   .F = %D1.F.decl
// CHECK:STDOUT:   extend %Base
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.specific_fn.loc9_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @D1.vtable {
// CHECK:STDOUT:   @D1.%D1.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @Base.F(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %Base [symbolic = %pattern_type (constants.%pattern_type.9f7)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Base [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @Base.F.%Base (%Base.370), %t.param: %ptr.87b) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Base.as.Destroy.impl.Op(@Base.%T.loc7_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Base [symbolic = %ptr (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @D1.F(%self.param: %D1, %t.param: %ptr.63e) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @D1.as.Destroy.impl.Op(%self.param: %ptr.7a4) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc7_17.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.f17
// CHECK:STDOUT:   %Base.F => constants.%Base.F.e26
// CHECK:STDOUT:   %Base.F.specific_fn.loc9_1.2 => constants.%Base.F.specific_fn.892
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9f7
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %ptr => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T1) {
// CHECK:STDOUT:   %T.loc7_17.1 => constants.%T1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.d82
// CHECK:STDOUT:   %Base.F => constants.%Base.F.d25
// CHECK:STDOUT:   %Base.F.specific_fn.loc9_1.2 => constants.%Base.F.specific_fn.210
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T1) {
// CHECK:STDOUT:   %T => constants.%T1
// CHECK:STDOUT:   %Base => constants.%Base.ea5
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3bf
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%complete_type.513
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_impl_generic_generic_mismatch.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base [symbolic]
// CHECK:STDOUT:   %ptr.79f: type = ptr_type %T [symbolic]
// CHECK:STDOUT:   %pattern_type.afe: type = pattern_type %ptr.79f [symbolic]
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base [symbolic]
// CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn: <specific function> = specific_function %Base.F, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete.97d: <witness> = require_complete_type %Base [symbolic]
// CHECK:STDOUT:   %require_complete.6e5: <witness> = require_complete_type %ptr.79f [symbolic]
// CHECK:STDOUT:   %Derived.type: type = generic_class_type @Derived [concrete]
// CHECK:STDOUT:   %Derived.generic: %Derived.type = struct_value () [concrete]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base [symbolic]
// CHECK:STDOUT:   %pattern_type.423: type = pattern_type %Derived [symbolic]
// CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F, @Derived(%T) [symbolic]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.impl_witness.fa7: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.178: type = ptr_type %Derived [symbolic]
// CHECK:STDOUT:   %pattern_type.520: type = pattern_type %ptr.178 [symbolic]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Derived.F.specific_fn: <specific function> = specific_function %Derived.F, @Derived.F(%T) [symbolic]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.8ea: type = struct_type {.base: %Base} [symbolic]
// CHECK:STDOUT:   %complete_type.d5d: <witness> = complete_type_witness %struct_type.base.8ea [symbolic]
// CHECK:STDOUT:   %require_complete.5f4: <witness> = require_complete_type %Derived [symbolic]
// CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_21.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_21.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Derived.decl: %Derived.type = class_decl @Derived [concrete = constants.%Derived.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc7_15.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_15.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Base.as.Destroy.impl.Op.decl: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = fn_decl @Base.as.Destroy.impl.Op [symbolic = @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_31.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = value_param call_param0
// CHECK:STDOUT:       %.loc4_31.2: type = splice_block %Self.ref [symbolic = %Base (constants.%Base)] {
// CHECK:STDOUT:         %.loc4_31.3: type = specific_constant constants.%Base, @Base(constants.%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_31.3 [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Derived.as.Destroy.impl(@Derived.%T.loc7_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic = %Derived.as.Destroy.impl.Op.type (constants.%Derived.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: @Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.type (%Derived.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Derived.as.Destroy.impl.Op (constants.%Derived.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Derived.as.Destroy.impl.Op.decl: @Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.type (%Derived.as.Destroy.impl.Op.type) = fn_decl @Derived.as.Destroy.impl.Op [symbolic = @Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op (constants.%Derived.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Derived.as.Destroy.impl.Op.%pattern_type (%pattern_type.520) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Derived.as.Destroy.impl.Op.%pattern_type (%pattern_type.520) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc7_25.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Derived.as.Destroy.impl.Op.%ptr (%ptr.178) = value_param call_param0
// CHECK:STDOUT:       %.loc7_25.2: type = splice_block %Self.ref [symbolic = %Derived (constants.%Derived)] {
// CHECK:STDOUT:         %.loc7_25.3: type = specific_constant constants.%Derived, @Derived(constants.%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc7_25.3 [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Derived.as.Destroy.impl.Op.%ptr (%ptr.178) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T.loc4_21.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_21.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T.loc4_21.1) [symbolic = %Base.F.type (constants.%Base.F.type)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type) = struct_value () [symbolic = %Base.F (constants.%Base.F)]
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2: <specific function> = specific_function %Base.F, @Base.F(%T.loc4_21.1) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.F.decl: @Base.%Base.F.type (%Base.F.type) = fn_decl @Base.F [symbolic = @Base.%Base.F (constants.%Base.F)] {
// CHECK:STDOUT:       %self.patt: @Base.F.%pattern_type.loc5_16 (%pattern_type.9f7) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.F.%pattern_type.loc5_16 (%pattern_type.9f7) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %t.patt: @Base.F.%pattern_type.loc5_28 (%pattern_type.afe) = binding_pattern t [concrete]
// CHECK:STDOUT:       %t.param_patt: @Base.F.%pattern_type.loc5_28 (%pattern_type.afe) = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.F.%Base (%Base) = value_param call_param0
// CHECK:STDOUT:       %.loc5_22.1: type = splice_block %Self.ref [symbolic = %Base (constants.%Base)] {
// CHECK:STDOUT:         %.loc5_22.2: type = specific_constant constants.%Base, @Base(constants.%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_22.2 [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.F.%Base (%Base) = bind_name self, %self.param
// CHECK:STDOUT:       %t.param: @Base.F.%ptr.loc5_32.1 (%ptr.79f) = value_param call_param1
// CHECK:STDOUT:       %.loc5_32: type = splice_block %ptr.loc5_32.2 [symbolic = %ptr.loc5_32.1 (constants.%ptr.79f)] {
// CHECK:STDOUT:         %T.ref: type = name_ref T, @Base.%T.loc4_21.2 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:         %ptr.loc5_32.2: type = ptr_type %T.ref [symbolic = %ptr.loc5_32.1 (constants.%ptr.79f)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %t: @Base.F.%ptr.loc5_32.1 (%ptr.79f) = bind_name t, %t.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base)]
// CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base
// CHECK:STDOUT:     .T = <poisoned>
// CHECK:STDOUT:     .F = %Base.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Derived(%T.loc7_15.2: type) {
// CHECK:STDOUT:   %T.loc7_15.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_15.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.loc8_22.2: type = class_type @Base, @Base(%T.loc7_15.1) [symbolic = %Base.loc8_22.2 (constants.%Base)]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Base.loc8_22.2 [symbolic = %require_complete (constants.%require_complete.97d)]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T.loc7_15.1) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base.loc8_22.2 [symbolic = %Derived.elem (constants.%Derived.elem)]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F, @Derived(%T.loc7_15.1) [symbolic = %Derived.F.type (constants.%Derived.F.type)]
// CHECK:STDOUT:   %Derived.F: @Derived.%Derived.F.type (%Derived.F.type) = struct_value () [symbolic = %Derived.F (constants.%Derived.F)]
// CHECK:STDOUT:   %Derived.F.specific_fn.loc17_1.2: <specific function> = specific_function %Derived.F, @Derived.F(%T.loc7_15.1) [symbolic = %Derived.F.specific_fn.loc17_1.2 (constants.%Derived.F.specific_fn)]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: @Derived.%Base.loc8_22.2 (%Base)} [symbolic = %struct_type.base (constants.%struct_type.base.8ea)]
// CHECK:STDOUT:   %complete_type.loc17_1.2: <witness> = complete_type_witness %struct_type.base [symbolic = %complete_type.loc17_1.2 (constants.%complete_type.d5d)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc7_15.2 [symbolic = %T.loc7_15.1 (constants.%T)]
// CHECK:STDOUT:     %Base.loc8_22.1: type = class_type @Base, @Base(constants.%T) [symbolic = %Base.loc8_22.2 (constants.%Base)]
// CHECK:STDOUT:     %.loc8: @Derived.%Derived.elem (%Derived.elem) = base_decl %Base.loc8_22.1, element0 [concrete]
// CHECK:STDOUT:     %Derived.F.decl: @Derived.%Derived.F.type (%Derived.F.type) = fn_decl @Derived.F [symbolic = @Derived.%Derived.F (constants.%Derived.F)] {
// CHECK:STDOUT:       %self.patt: @Derived.F.%pattern_type.loc16_13 (%pattern_type.423) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Derived.F.%pattern_type.loc16_13 (%pattern_type.423) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %t.patt: @Derived.F.%pattern_type.loc16_25 (%pattern_type.7dc) = binding_pattern t [concrete]
// CHECK:STDOUT:       %t.param_patt: @Derived.F.%pattern_type.loc16_25 (%pattern_type.7dc) = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Derived.F.%Derived (%Derived) = value_param call_param0
// CHECK:STDOUT:       %.loc16_19.1: type = splice_block %Self.ref [symbolic = %Derived (constants.%Derived)] {
// CHECK:STDOUT:         %.loc16_19.2: type = specific_constant constants.%Derived, @Derived(constants.%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc16_19.2 [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Derived.F.%Derived (%Derived) = bind_name self, %self.param
// CHECK:STDOUT:       %t.param: @Derived.F.%T (%T) = value_param call_param1
// CHECK:STDOUT:       %T.ref: type = name_ref T, @Derived.%T.loc7_15.2 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:       %t: @Derived.F.%T (%T) = bind_name t, %t.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [symbolic = @Derived.as.Destroy.impl.%Derived (constants.%Derived)]
// CHECK:STDOUT:     impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
// CHECK:STDOUT:     %Derived.F.specific_fn.loc17_1.1: <specific function> = specific_function %Derived.F.decl, @Derived.F(constants.%T) [symbolic = %Derived.F.specific_fn.loc17_1.2 (constants.%Derived.F.specific_fn)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:     %complete_type.loc17_1.1: <witness> = complete_type_witness constants.%struct_type.base.8ea [symbolic = %complete_type.loc17_1.2 (constants.%complete_type.d5d)]
// CHECK:STDOUT:     complete_type_witness = %complete_type.loc17_1.1
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Derived
// CHECK:STDOUT:     .Base = <poisoned>
// CHECK:STDOUT:     .T = <poisoned>
// CHECK:STDOUT:     .base = %.loc8
// CHECK:STDOUT:     .F = %Derived.F.decl
// CHECK:STDOUT:     extend %Base.loc8_22.1
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.F.specific_fn.loc17_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @Base.F(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %pattern_type.loc5_16: type = pattern_type %Base [symbolic = %pattern_type.loc5_16 (constants.%pattern_type.9f7)]
// CHECK:STDOUT:   %ptr.loc5_32.1: type = ptr_type %T [symbolic = %ptr.loc5_32.1 (constants.%ptr.79f)]
// CHECK:STDOUT:   %pattern_type.loc5_28: type = pattern_type %ptr.loc5_32.1 [symbolic = %pattern_type.loc5_28 (constants.%pattern_type.afe)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20: <witness> = require_complete_type %Base [symbolic = %require_complete.loc5_20 (constants.%require_complete.97d)]
// CHECK:STDOUT:   %require_complete.loc5_29: <witness> = require_complete_type %ptr.loc5_32.1 [symbolic = %require_complete.loc5_29 (constants.%require_complete.6e5)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @Base.F.%Base (%Base), %t.param: @Base.F.%ptr.loc5_32.1 (%ptr.79f)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Base.as.Destroy.impl.Op(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Base [symbolic = %ptr (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl fn @Derived.F(@Derived.%T.loc7_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:   %pattern_type.loc16_13: type = pattern_type %Derived [symbolic = %pattern_type.loc16_13 (constants.%pattern_type.423)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %require_complete.loc16_28: <witness> = require_complete_type %Base [symbolic = %require_complete.loc16_28 (constants.%require_complete.97d)]
// CHECK:STDOUT:   %pattern_type.loc16_25: type = pattern_type %T [symbolic = %pattern_type.loc16_25 (constants.%pattern_type.7dc)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc16_17: <witness> = require_complete_type %Derived [symbolic = %require_complete.loc16_17 (constants.%require_complete.5f4)]
// CHECK:STDOUT:   %require_complete.loc16_26: <witness> = require_complete_type %T [symbolic = %require_complete.loc16_26 (constants.%require_complete.4ae)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl fn(%self.param: @Derived.F.%Derived (%Derived), %t.param: @Derived.F.%T (%T)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Derived.as.Destroy.impl.Op(@Derived.%T.loc7_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Derived [symbolic = %ptr (constants.%ptr.178)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.520)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Derived.as.Destroy.impl.Op.%ptr (%ptr.178)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc4_21.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type
// CHECK:STDOUT:   %Base.F => constants.%Base.F
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2 => constants.%Base.F.specific_fn
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %pattern_type.loc5_16 => constants.%pattern_type.9f7
// CHECK:STDOUT:   %ptr.loc5_32.1 => constants.%ptr.79f
// CHECK:STDOUT:   %pattern_type.loc5_28 => constants.%pattern_type.afe
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20 => constants.%require_complete.97d
// CHECK:STDOUT:   %require_complete.loc5_29 => constants.%require_complete.6e5
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %ptr => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Derived(constants.%T) {
// CHECK:STDOUT:   %T.loc7_15.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.loc8_22.2 => constants.%Base
// CHECK:STDOUT:   %require_complete => constants.%require_complete.97d
// CHECK:STDOUT:   %Derived => constants.%Derived
// CHECK:STDOUT:   %Derived.elem => constants.%Derived.elem
// CHECK:STDOUT:   %Derived.F.type => constants.%Derived.F.type
// CHECK:STDOUT:   %Derived.F => constants.%Derived.F
// CHECK:STDOUT:   %Derived.F.specific_fn.loc17_1.2 => constants.%Derived.F.specific_fn
// CHECK:STDOUT:   %struct_type.base => constants.%struct_type.base.8ea
// CHECK:STDOUT:   %complete_type.loc17_1.2 => constants.%complete_type.d5d
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Derived.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Derived => constants.%Derived
// CHECK:STDOUT:   %pattern_type.loc16_13 => constants.%pattern_type.423
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %require_complete.loc16_28 => constants.%require_complete.97d
// CHECK:STDOUT:   %pattern_type.loc16_25 => constants.%pattern_type.7dc
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc16_17 => constants.%require_complete.5f4
// CHECK:STDOUT:   %require_complete.loc16_26 => constants.%require_complete.4ae
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Derived.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Derived => constants.%Derived
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fa7
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Derived.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Derived => constants.%Derived
// CHECK:STDOUT:   %ptr => constants.%ptr.178
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.520
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- impl_generic_generic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.370: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base.370 [symbolic]
// CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
// CHECK:STDOUT:   %Base.F.type.f17: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
// CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.892: <specific function> = specific_function %Base.F.e26, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete.97d: <witness> = require_complete_type %Base.370 [symbolic]
// CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
// CHECK:STDOUT:   %Derived.type: type = generic_class_type @Derived [concrete]
// CHECK:STDOUT:   %Derived.generic: %Derived.type = struct_value () [concrete]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic]
// CHECK:STDOUT:   %ptr.79f: type = ptr_type %T [symbolic]
// CHECK:STDOUT:   %Base.16b: type = class_type @Base, @Base(%ptr.79f) [symbolic]
// CHECK:STDOUT:   %Base.F.type.5df: type = fn_type @Base.F, @Base(%ptr.79f) [symbolic]
// CHECK:STDOUT:   %Base.F.ad0: %Base.F.type.5df = struct_value () [symbolic]
// CHECK:STDOUT:   %pattern_type.4a0: type = pattern_type %Base.16b [symbolic]
// CHECK:STDOUT:   %pattern_type.afe: type = pattern_type %ptr.79f [symbolic]
// CHECK:STDOUT:   %Base.F.specific_fn.494: <specific function> = specific_function %Base.F.ad0, @Base.F(%ptr.79f) [symbolic]
// CHECK:STDOUT:   %require_complete.fce: <witness> = require_complete_type %Base.16b [symbolic]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base.16b [symbolic]
// CHECK:STDOUT:   %pattern_type.423: type = pattern_type %Derived [symbolic]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F, @Derived(%T) [symbolic]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.impl_witness.fa7: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.178: type = ptr_type %Derived [symbolic]
// CHECK:STDOUT:   %pattern_type.520: type = pattern_type %ptr.178 [symbolic]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Derived.F.specific_fn: <specific function> = specific_function %Derived.F, @Derived.F(%T) [symbolic]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.d96: type = struct_type {.base: %Base.16b} [symbolic]
// CHECK:STDOUT:   %complete_type.5dc: <witness> = complete_type_witness %struct_type.base.d96 [symbolic]
// CHECK:STDOUT:   %require_complete.5f4: <witness> = require_complete_type %Derived [symbolic]
// CHECK:STDOUT:   %require_complete.6e5: <witness> = require_complete_type %ptr.79f [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_21.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_21.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Derived.decl: %Derived.type = class_decl @Derived [concrete = constants.%Derived.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc7_15.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_15.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Base.as.Destroy.impl.Op.decl: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = fn_decl @Base.as.Destroy.impl.Op [symbolic = @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_31.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = value_param call_param0
// CHECK:STDOUT:       %.loc4_31.2: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc4_31.3: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_31.3 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Derived.as.Destroy.impl(@Derived.%T.loc7_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic = %Derived.as.Destroy.impl.Op.type (constants.%Derived.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: @Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.type (%Derived.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Derived.as.Destroy.impl.Op (constants.%Derived.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Derived.as.Destroy.impl.Op.decl: @Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.type (%Derived.as.Destroy.impl.Op.type) = fn_decl @Derived.as.Destroy.impl.Op [symbolic = @Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op (constants.%Derived.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Derived.as.Destroy.impl.Op.%pattern_type (%pattern_type.520) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Derived.as.Destroy.impl.Op.%pattern_type (%pattern_type.520) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc7_25.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Derived.as.Destroy.impl.Op.%ptr (%ptr.178) = value_param call_param0
// CHECK:STDOUT:       %.loc7_25.2: type = splice_block %Self.ref [symbolic = %Derived (constants.%Derived)] {
// CHECK:STDOUT:         %.loc7_25.3: type = specific_constant constants.%Derived, @Derived(constants.%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc7_25.3 [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Derived.as.Destroy.impl.Op.%ptr (%ptr.178) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T.loc4_21.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_21.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T.loc4_21.1) [symbolic = %Base.F.type (constants.%Base.F.type.f17)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type.f17) = struct_value () [symbolic = %Base.F (constants.%Base.F.e26)]
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2: <specific function> = specific_function %Base.F, @Base.F(%T.loc4_21.1) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.F.decl: @Base.%Base.F.type (%Base.F.type.f17) = fn_decl @Base.F [symbolic = @Base.%Base.F (constants.%Base.F.e26)] {
// CHECK:STDOUT:       %self.patt: @Base.F.%pattern_type.loc5_16 (%pattern_type.9f7) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.F.%pattern_type.loc5_16 (%pattern_type.9f7) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %t.patt: @Base.F.%pattern_type.loc5_28 (%pattern_type.7dc) = binding_pattern t [concrete]
// CHECK:STDOUT:       %t.param_patt: @Base.F.%pattern_type.loc5_28 (%pattern_type.7dc) = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.F.%Base (%Base.370) = value_param call_param0
// CHECK:STDOUT:       %.loc5_22.1: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc5_22.2: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_22.2 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.F.%Base (%Base.370) = bind_name self, %self.param
// CHECK:STDOUT:       %t.param: @Base.F.%T (%T) = value_param call_param1
// CHECK:STDOUT:       %T.ref: type = name_ref T, @Base.%T.loc4_21.2 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:       %t: @Base.F.%T (%T) = bind_name t, %t.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
// CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base.370
// CHECK:STDOUT:     .T = <poisoned>
// CHECK:STDOUT:     .F = %Base.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Derived(%T.loc7_15.2: type) {
// CHECK:STDOUT:   %T.loc7_15.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_15.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %ptr.loc8_22.2: type = ptr_type %T.loc7_15.1 [symbolic = %ptr.loc8_22.2 (constants.%ptr.79f)]
// CHECK:STDOUT:   %Base.loc8_23.2: type = class_type @Base, @Base(%ptr.loc8_22.2) [symbolic = %Base.loc8_23.2 (constants.%Base.16b)]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Base.loc8_23.2 [symbolic = %require_complete (constants.%require_complete.fce)]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T.loc7_15.1) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base.loc8_23.2 [symbolic = %Derived.elem (constants.%Derived.elem)]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F, @Derived(%T.loc7_15.1) [symbolic = %Derived.F.type (constants.%Derived.F.type)]
// CHECK:STDOUT:   %Derived.F: @Derived.%Derived.F.type (%Derived.F.type) = struct_value () [symbolic = %Derived.F (constants.%Derived.F)]
// CHECK:STDOUT:   %Derived.F.specific_fn.loc10_1.2: <specific function> = specific_function %Derived.F, @Derived.F(%T.loc7_15.1) [symbolic = %Derived.F.specific_fn.loc10_1.2 (constants.%Derived.F.specific_fn)]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: @Derived.%Base.loc8_23.2 (%Base.16b)} [symbolic = %struct_type.base (constants.%struct_type.base.d96)]
// CHECK:STDOUT:   %complete_type.loc10_1.2: <witness> = complete_type_witness %struct_type.base [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.5dc)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc7_15.2 [symbolic = %T.loc7_15.1 (constants.%T)]
// CHECK:STDOUT:     %ptr.loc8_22.1: type = ptr_type %T.ref [symbolic = %ptr.loc8_22.2 (constants.%ptr.79f)]
// CHECK:STDOUT:     %Base.loc8_23.1: type = class_type @Base, @Base(constants.%ptr.79f) [symbolic = %Base.loc8_23.2 (constants.%Base.16b)]
// CHECK:STDOUT:     %.loc8: @Derived.%Derived.elem (%Derived.elem) = base_decl %Base.loc8_23.1, element0 [concrete]
// CHECK:STDOUT:     %Derived.F.decl: @Derived.%Derived.F.type (%Derived.F.type) = fn_decl @Derived.F [symbolic = @Derived.%Derived.F (constants.%Derived.F)] {
// CHECK:STDOUT:       %self.patt: @Derived.F.%pattern_type.loc9_13 (%pattern_type.423) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Derived.F.%pattern_type.loc9_13 (%pattern_type.423) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %t.patt: @Derived.F.%pattern_type.loc9_25 (%pattern_type.afe) = binding_pattern t [concrete]
// CHECK:STDOUT:       %t.param_patt: @Derived.F.%pattern_type.loc9_25 (%pattern_type.afe) = value_param_pattern %t.patt, call_param1 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Derived.F.%Derived (%Derived) = value_param call_param0
// CHECK:STDOUT:       %.loc9_19.1: type = splice_block %Self.ref [symbolic = %Derived (constants.%Derived)] {
// CHECK:STDOUT:         %.loc9_19.2: type = specific_constant constants.%Derived, @Derived(constants.%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc9_19.2 [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Derived.F.%Derived (%Derived) = bind_name self, %self.param
// CHECK:STDOUT:       %t.param: @Derived.F.%ptr.loc9_28 (%ptr.79f) = value_param call_param1
// CHECK:STDOUT:       %.loc9_29: type = splice_block %ptr.loc9_29 [symbolic = %ptr.loc9_28 (constants.%ptr.79f)] {
// CHECK:STDOUT:         %T.ref: type = name_ref T, @Derived.%T.loc7_15.2 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:         %ptr.loc9_29: type = ptr_type %T.ref [symbolic = %ptr.loc9_28 (constants.%ptr.79f)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %t: @Derived.F.%ptr.loc9_28 (%ptr.79f) = bind_name t, %t.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [symbolic = @Derived.as.Destroy.impl.%Derived (constants.%Derived)]
// CHECK:STDOUT:     impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
// CHECK:STDOUT:     %Derived.F.specific_fn.loc10_1.1: <specific function> = specific_function %Derived.F.decl, @Derived.F(constants.%T) [symbolic = %Derived.F.specific_fn.loc10_1.2 (constants.%Derived.F.specific_fn)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:     %complete_type.loc10_1.1: <witness> = complete_type_witness constants.%struct_type.base.d96 [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.5dc)]
// CHECK:STDOUT:     complete_type_witness = %complete_type.loc10_1.1
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Derived
// CHECK:STDOUT:     .Base = <poisoned>
// CHECK:STDOUT:     .T = <poisoned>
// CHECK:STDOUT:     .base = %.loc8
// CHECK:STDOUT:     .F = %Derived.F.decl
// CHECK:STDOUT:     extend %Base.loc8_23.1
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.F.specific_fn.loc10_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @Base.F(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %pattern_type.loc5_16: type = pattern_type %Base [symbolic = %pattern_type.loc5_16 (constants.%pattern_type.9f7)]
// CHECK:STDOUT:   %pattern_type.loc5_28: type = pattern_type %T [symbolic = %pattern_type.loc5_28 (constants.%pattern_type.7dc)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20: <witness> = require_complete_type %Base [symbolic = %require_complete.loc5_20 (constants.%require_complete.97d)]
// CHECK:STDOUT:   %require_complete.loc5_29: <witness> = require_complete_type %T [symbolic = %require_complete.loc5_29 (constants.%require_complete.4ae)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @Base.F.%Base (%Base.370), %t.param: @Base.F.%T (%T)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Base.as.Destroy.impl.Op(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Base [symbolic = %ptr (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl fn @Derived.F(@Derived.%T.loc7_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:   %pattern_type.loc9_13: type = pattern_type %Derived [symbolic = %pattern_type.loc9_13 (constants.%pattern_type.423)]
// CHECK:STDOUT:   %ptr.loc9_28: type = ptr_type %T [symbolic = %ptr.loc9_28 (constants.%ptr.79f)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%ptr.loc9_28) [symbolic = %Base (constants.%Base.16b)]
// CHECK:STDOUT:   %require_complete.loc9_28: <witness> = require_complete_type %Base [symbolic = %require_complete.loc9_28 (constants.%require_complete.fce)]
// CHECK:STDOUT:   %pattern_type.loc9_25: type = pattern_type %ptr.loc9_28 [symbolic = %pattern_type.loc9_25 (constants.%pattern_type.afe)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc9_17: <witness> = require_complete_type %Derived [symbolic = %require_complete.loc9_17 (constants.%require_complete.5f4)]
// CHECK:STDOUT:   %require_complete.loc9_26: <witness> = require_complete_type %ptr.loc9_28 [symbolic = %require_complete.loc9_26 (constants.%require_complete.6e5)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl fn(%self.param: @Derived.F.%Derived (%Derived), %t.param: @Derived.F.%ptr.loc9_28 (%ptr.79f)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Derived.as.Destroy.impl.Op(@Derived.%T.loc7_15.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Derived [symbolic = %ptr (constants.%ptr.178)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.520)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Derived.as.Destroy.impl.Op.%ptr (%ptr.178)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc4_21.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.f17
// CHECK:STDOUT:   %Base.F => constants.%Base.F.e26
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2 => constants.%Base.F.specific_fn.892
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %pattern_type.loc5_16 => constants.%pattern_type.9f7
// CHECK:STDOUT:   %pattern_type.loc5_28 => constants.%pattern_type.7dc
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20 => constants.%require_complete.97d
// CHECK:STDOUT:   %require_complete.loc5_29 => constants.%require_complete.4ae
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %ptr => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Derived(constants.%T) {
// CHECK:STDOUT:   %T.loc7_15.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %ptr.loc8_22.2 => constants.%ptr.79f
// CHECK:STDOUT:   %Base.loc8_23.2 => constants.%Base.16b
// CHECK:STDOUT:   %require_complete => constants.%require_complete.fce
// CHECK:STDOUT:   %Derived => constants.%Derived
// CHECK:STDOUT:   %Derived.elem => constants.%Derived.elem
// CHECK:STDOUT:   %Derived.F.type => constants.%Derived.F.type
// CHECK:STDOUT:   %Derived.F => constants.%Derived.F
// CHECK:STDOUT:   %Derived.F.specific_fn.loc10_1.2 => constants.%Derived.F.specific_fn
// CHECK:STDOUT:   %struct_type.base => constants.%struct_type.base.d96
// CHECK:STDOUT:   %complete_type.loc10_1.2 => constants.%complete_type.5dc
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%ptr.79f) {
// CHECK:STDOUT:   %T.loc4_21.1 => constants.%ptr.79f
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.5df
// CHECK:STDOUT:   %Base.F => constants.%Base.F.ad0
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2 => constants.%Base.F.specific_fn.494
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%ptr.79f) {
// CHECK:STDOUT:   %T => constants.%ptr.79f
// CHECK:STDOUT:   %Base => constants.%Base.16b
// CHECK:STDOUT:   %pattern_type.loc5_16 => constants.%pattern_type.4a0
// CHECK:STDOUT:   %pattern_type.loc5_28 => constants.%pattern_type.afe
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc5_20 => constants.%require_complete.fce
// CHECK:STDOUT:   %require_complete.loc5_29 => constants.%require_complete.6e5
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Derived.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Derived => constants.%Derived
// CHECK:STDOUT:   %pattern_type.loc9_13 => constants.%pattern_type.423
// CHECK:STDOUT:   %ptr.loc9_28 => constants.%ptr.79f
// CHECK:STDOUT:   %Base => constants.%Base.16b
// CHECK:STDOUT:   %require_complete.loc9_28 => constants.%require_complete.fce
// CHECK:STDOUT:   %pattern_type.loc9_25 => constants.%pattern_type.afe
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete.loc9_17 => constants.%require_complete.5f4
// CHECK:STDOUT:   %require_complete.loc9_26 => constants.%require_complete.6e5
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Derived.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Derived => constants.%Derived
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fa7
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Derived.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Derived => constants.%Derived
// CHECK:STDOUT:   %ptr => constants.%ptr.178
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.520
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- abstract_generic_undefined.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base.370: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base.370 [symbolic]
// CHECK:STDOUT:   %Base.F.type.f17: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
// CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.892: <specific function> = specific_function %Base.F.e26, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT:   %Base.ea5: type = class_type @Base, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.type.d82: type = fn_type @Base.F, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.d25: %Base.F.type.d82 = struct_value () [concrete]
// CHECK:STDOUT:   %pattern_type.3bf: type = pattern_type %Base.ea5 [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.210: <specific function> = specific_function %Base.F.d25, @Base.F(%T1) [concrete]
// CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base.ea5 [concrete]
// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
// CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
// CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
// CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
// CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op: %Derived.as.Destroy.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Derived.vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base.fda: type = struct_type {.base: %Base.ea5} [concrete]
// CHECK:STDOUT:   %complete_type.65a: <witness> = complete_type_witness %struct_type.base.fda [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_21.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_21.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Base.as.Destroy.impl.Op.decl: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = fn_decl @Base.as.Destroy.impl.Op [symbolic = @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_31.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = value_param call_param0
// CHECK:STDOUT:       %.loc4_31.2: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc4_31.3: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_31.3 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Derived.as.Destroy.impl: @Derived.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.decl: %Derived.as.Destroy.impl.Op.type = fn_decl @Derived.as.Destroy.impl.Op [concrete = constants.%Derived.as.Destroy.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.605 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.605 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %.loc10: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %ptr.404 = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %ptr.404 = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Op = %Derived.as.Destroy.impl.Op.decl
// CHECK:STDOUT:   witness = @Derived.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T.loc4_21.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_21.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T.loc4_21.1) [symbolic = %Base.F.type (constants.%Base.F.type.f17)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type.f17) = struct_value () [symbolic = %Base.F (constants.%Base.F.e26)]
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2: <specific function> = specific_function %Base.F, @Base.F(%T.loc4_21.1) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.F.decl: @Base.%Base.F.type (%Base.F.type.f17) = fn_decl @Base.F [symbolic = @Base.%Base.F (constants.%Base.F.e26)] {
// CHECK:STDOUT:       %self.patt: @Base.F.%pattern_type (%pattern_type.9f7) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.F.%pattern_type (%pattern_type.9f7) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.F.%Base (%Base.370) = value_param call_param0
// CHECK:STDOUT:       %.loc5_23.1: type = splice_block %Self.ref [symbolic = %Base (constants.%Base.370)] {
// CHECK:STDOUT:         %.loc5_23.2: type = specific_constant constants.%Base.370, @Base(constants.%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_23.2 [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.F.%Base (%Base.370) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
// CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
// CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base.370
// CHECK:STDOUT:     .F = %Base.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1;
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT:   %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(constants.%T1) [concrete = constants.%Base.ea5]
// CHECK:STDOUT:   %.loc11: %Derived.elem = base_decl %Base, element0 [concrete]
// CHECK:STDOUT:   %Derived.F.decl: %Derived.F.type = fn_decl @Derived.F [concrete = constants.%Derived.F] {
// CHECK:STDOUT:     %self.patt: %pattern_type.fb9 = binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.fb9 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: %Derived = value_param call_param0
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:     %self: %Derived = bind_name self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
// CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
// CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.fda [concrete = constants.%complete_type.65a]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:   vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .Base = <poisoned>
// CHECK:STDOUT:   .T1 = <poisoned>
// CHECK:STDOUT:   .base = %.loc11
// CHECK:STDOUT:   .F = %Derived.F.decl
// CHECK:STDOUT:   extend %Base
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Derived.vtable {
// CHECK:STDOUT:   @Derived.%Derived.F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic abstract fn @Base.F(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %Base [symbolic = %pattern_type (constants.%pattern_type.9f7)]
// CHECK:STDOUT:
// CHECK:STDOUT:   abstract fn(%self.param: @Base.F.%Base (%Base.370));
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Base.as.Destroy.impl.Op(@Base.%T.loc4_21.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Base [symbolic = %ptr (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl fn @Derived.F(%self.param: %Derived) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Derived.as.Destroy.impl.Op(%self.param: %ptr.404) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc4_21.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9f7
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %ptr => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T1) {
// CHECK:STDOUT:   %T.loc4_21.1 => constants.%T1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.d82
// CHECK:STDOUT:   %Base.F => constants.%Base.F.d25
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2 => constants.%Base.F.specific_fn.210
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T1) {
// CHECK:STDOUT:   %T => constants.%T1
// CHECK:STDOUT:   %Base => constants.%Base.ea5
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3bf
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- generic_lib.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base [symbolic]
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base [symbolic]
// CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn: <specific function> = specific_function %Base.F, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Base [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_17.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_17.1 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %Base.as.Destroy.impl.Op: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @Base.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %Base.as.Destroy.impl.Op.decl: @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.type (%Base.as.Destroy.impl.Op.type) = fn_decl @Base.as.Destroy.impl.Op [symbolic = @Base.as.Destroy.impl.%Base.as.Destroy.impl.Op (constants.%Base.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.as.Destroy.impl.Op.%pattern_type (%pattern_type.8d4) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_27.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = value_param call_param0
// CHECK:STDOUT:       %.loc4_27.2: type = splice_block %Self.ref [symbolic = %Base (constants.%Base)] {
// CHECK:STDOUT:         %.loc4_27.3: type = specific_constant constants.%Base, @Base(constants.%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_27.3 [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %Base.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @Base.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc4_17.2: type) {
// CHECK:STDOUT:   %T.loc4_17.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_17.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T.loc4_17.1) [symbolic = %Base.F.type (constants.%Base.F.type)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type) = struct_value () [symbolic = %Base.F (constants.%Base.F)]
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2: <specific function> = specific_function %Base.F, @Base.F(%T.loc4_17.1) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %Base.F.decl: @Base.%Base.F.type (%Base.F.type) = fn_decl @Base.F [symbolic = @Base.%Base.F (constants.%Base.F)] {
// CHECK:STDOUT:       %self.patt: @Base.F.%pattern_type (%pattern_type.9f7) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @Base.F.%pattern_type (%pattern_type.9f7) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @Base.F.%Base (%Base) = value_param call_param0
// CHECK:STDOUT:       %.loc5_22.1: type = splice_block %Self.ref [symbolic = %Base (constants.%Base)] {
// CHECK:STDOUT:         %.loc5_22.2: type = specific_constant constants.%Base, @Base(constants.%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_22.2 [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @Base.F.%Base (%Base) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base)]
// CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
// CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base
// CHECK:STDOUT:     .F = %Base.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   @Base.%Base.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @Base.F(@Base.%T.loc4_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %Base [symbolic = %pattern_type (constants.%pattern_type.9f7)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Base [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @Base.F.%Base (%Base)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Base.as.Destroy.impl.Op(@Base.%T.loc4_17.2: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
// CHECK:STDOUT:   %ptr: type = ptr_type %Base [symbolic = %ptr (constants.%ptr.b7c)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8d4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @Base.as.Destroy.impl.Op.%ptr (%ptr.b7c)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc4_17.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type
// CHECK:STDOUT:   %Base.F => constants.%Base.F
// CHECK:STDOUT:   %Base.F.specific_fn.loc6_1.2 => constants.%Base.F.specific_fn
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9f7
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base
// CHECK:STDOUT:   %ptr => constants.%ptr.b7c
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- generic_import.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT:   %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %Base.370: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F.type.f17: type = fn_type @Base.F, @Base(%T) [symbolic]
// CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
// CHECK:STDOUT:   %pattern_type.9f7: type = pattern_type %Base.370 [symbolic]
// CHECK:STDOUT:   %Base.F.specific_fn.892: <specific function> = specific_function %Base.F.e26, @Base.F(%T) [symbolic]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Base.370 [symbolic]
// CHECK:STDOUT:   %Base.ea5: type = class_type @Base, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.type.d82: type = fn_type @Base.F, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.F.d25: %Base.F.type.d82 = struct_value () [concrete]
// CHECK:STDOUT:   %pattern_type.3bf: type = pattern_type %Base.ea5 [concrete]
// CHECK:STDOUT:   %Base.F.specific_fn.210: <specific function> = specific_function %Base.F.d25, @Base.F(%T1) [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %.b74: ref %ptr.454 = class_element_access file.%v.var, element0 [concrete]
// CHECK:STDOUT:   %Base.vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete]
// CHECK:STDOUT:   %Base.vtable_ptr: ref %ptr.454 = vtable_ptr @Base.vtable, @Base(%T1) [concrete]
// CHECK:STDOUT:   %Base.val: %Base.ea5 = struct_value (%Base.vtable_ptr) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Main.Base: %Base.type = import_ref Main//generic_lib, Base, loaded [concrete = constants.%Base.generic]
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Main.import_ref.0e5: ref %ptr.454 = import_ref Main//generic_lib, loc6_1, loaded [concrete = constants.%Base.vtable_decl]
// CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//generic_lib, loc4_17, loaded [symbolic = @Base.%T (constants.%T)]
// CHECK:STDOUT:   %Main.import_ref.05e: <witness> = import_ref Main//generic_lib, loc6_1, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT:   %Main.import_ref.8e0 = import_ref Main//generic_lib, inst28 [no loc], unloaded
// CHECK:STDOUT:   %Main.import_ref.e54 = import_ref Main//generic_lib, loc5_30, unloaded
// CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//generic_lib, loc4_17, loaded [symbolic = @Base.%T (constants.%T)]
// CHECK:STDOUT:   %Main.import_ref.78a: <specific function> = import_ref Main//generic_lib, loc6_1, loaded [symbolic = constants.%Base.F.specific_fn.892]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Base = imports.%Main.Base
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .v = %v
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %default.import = import <none>
// CHECK:STDOUT:   %T1.decl: type = class_decl @T1 [concrete = constants.%T1] {} {}
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %v.patt: %pattern_type.3bf = binding_pattern v [concrete]
// CHECK:STDOUT:     %v.var_patt: %pattern_type.3bf = var_pattern %v.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %v.var: ref %Base.ea5 = var %v.var_patt [concrete]
// CHECK:STDOUT:   %.loc7: type = splice_block %Base [concrete = constants.%Base.ea5] {
// CHECK:STDOUT:     %Base.ref: %Base.type = name_ref Base, imports.%Main.Base [concrete = constants.%Base.generic]
// CHECK:STDOUT:     %T1.ref: type = name_ref T1, %T1.decl [concrete = constants.%T1]
// CHECK:STDOUT:     %Base: type = class_type @Base, @Base(constants.%T1) [concrete = constants.%Base.ea5]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %v: ref %Base.ea5 = bind_name v, %v.var [concrete = %v.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @T1;
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(imports.%Main.import_ref.5ab3ec.1: type) [from "generic_lib.carbon"] {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F, @Base(%T) [symbolic = %Base.F.type (constants.%Base.F.type.f17)]
// CHECK:STDOUT:   %Base.F: @Base.%Base.F.type (%Base.F.type.f17) = struct_value () [symbolic = %Base.F (constants.%Base.F.e26)]
// CHECK:STDOUT:   %Base.F.specific_fn: <specific function> = specific_function %Base.F, @Base.F(%T) [symbolic = %Base.F.specific_fn (constants.%Base.F.specific_fn.892)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     complete_type_witness = imports.%Main.import_ref.05e
// CHECK:STDOUT:     vtable_decl = imports.%Main.import_ref.0e5
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = imports.%Main.import_ref.8e0
// CHECK:STDOUT:     .F = imports.%Main.import_ref.e54
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @Base.vtable {
// CHECK:STDOUT:   imports.%Main.import_ref.78a
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @Base.F(imports.%Main.import_ref.5ab3ec.2: type) [from "generic_lib.carbon"] {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %Base [symbolic = %pattern_type (constants.%pattern_type.9f7)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Base [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc7_20.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc7_20.2: ref %ptr.454 = class_element_access file.%v.var, element0 [concrete = constants.%.b74]
// CHECK:STDOUT:   %Base.vtable_ptr: ref %ptr.454 = vtable_ptr @Base.vtable, @Base(constants.%T1) [concrete = constants.%Base.vtable_ptr]
// CHECK:STDOUT:   %.loc7_20.3: init %ptr.454 = initialize_from %Base.vtable_ptr to %.loc7_20.2 [concrete = constants.%Base.vtable_ptr]
// CHECK:STDOUT:   %.loc7_20.4: init %Base.ea5 = class_init (%.loc7_20.3), file.%v.var [concrete = constants.%Base.val]
// CHECK:STDOUT:   %.loc7_1: init %Base.ea5 = converted %.loc7_20.1, %.loc7_20.4 [concrete = constants.%Base.val]
// CHECK:STDOUT:   assign file.%v.var, %.loc7_1
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.f17
// CHECK:STDOUT:   %Base.F => constants.%Base.F.e26
// CHECK:STDOUT:   %Base.F.specific_fn => constants.%Base.F.specific_fn.892
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %Base => constants.%Base.370
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9f7
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T1) {
// CHECK:STDOUT:   %T => constants.%T1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base.F.type => constants.%Base.F.type.d82
// CHECK:STDOUT:   %Base.F => constants.%Base.F.d25
// CHECK:STDOUT:   %Base.F.specific_fn => constants.%Base.F.specific_fn.210
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base.F(constants.%T1) {
// CHECK:STDOUT:   %T => constants.%T1
// CHECK:STDOUT:   %Base => constants.%Base.ea5
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3bf
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%complete_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- generic_derived_generic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %T1.type: type = generic_class_type @T1 [concrete]
// CHECK:STDOUT:   %T1.generic: %T1.type = struct_value () [concrete]
// CHECK:STDOUT:   %T1.18aea2.1: type = class_type @T1, @T1(%G1) [symbolic]
// CHECK:STDOUT:   %pattern_type.48ecf1.1: type = pattern_type %T1.18aea2.1 [symbolic]
// CHECK:STDOUT:   %T1.F.type.ebcc3f.1: type = fn_type @T1.F, @T1(%G1) [symbolic]
// CHECK:STDOUT:   %T1.F.0df085.1: %T1.F.type.ebcc3f.1 = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.fdd: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic]
// CHECK:STDOUT:   %ptr.997: type = ptr_type %T1.18aea2.1 [symbolic]
// CHECK:STDOUT:   %pattern_type.f06: type = pattern_type %ptr.997 [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%G1) [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %T1.F.specific_fn.1e2a8c.1: <specific function> = specific_function %T1.F.0df085.1, @T1.F(%G1) [symbolic]
// CHECK:STDOUT:   %T1.vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete.86d019.1: <witness> = require_complete_type %T1.18aea2.1 [symbolic]
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic]
// CHECK:STDOUT:   %T2.type: type = generic_class_type @T2 [concrete]
// CHECK:STDOUT:   %T2.generic: %T2.type = struct_value () [concrete]
// CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2) [symbolic]
// CHECK:STDOUT:   %T1.18aea2.2: type = class_type @T1, @T1(%G2) [symbolic]
// CHECK:STDOUT:   %T1.F.type.ebcc3f.2: type = fn_type @T1.F, @T1(%G2) [symbolic]
// CHECK:STDOUT:   %T1.F.0df085.2: %T1.F.type.ebcc3f.2 = struct_value () [symbolic]
// CHECK:STDOUT:   %pattern_type.48ecf1.2: type = pattern_type %T1.18aea2.2 [symbolic]
// CHECK:STDOUT:   %T1.F.specific_fn.1e2a8c.2: <specific function> = specific_function %T1.F.0df085.2, @T1.F(%G2) [symbolic]
// CHECK:STDOUT:   %require_complete.86d019.2: <witness> = require_complete_type %T1.18aea2.2 [symbolic]
// CHECK:STDOUT:   %T2.elem: type = unbound_element_type %T2, %T1.18aea2.2 [symbolic]
// CHECK:STDOUT:   %Destroy.impl_witness.fb2: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic]
// CHECK:STDOUT:   %ptr.112: type = ptr_type %T2 [symbolic]
// CHECK:STDOUT:   %pattern_type.8f6: type = pattern_type %ptr.112 [symbolic]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op, @T2.as.Destroy.impl(%G2) [symbolic]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op: %T2.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %T2.vtable_decl: ref %ptr.454 = vtable_decl @T2.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %T1.18aea2.2} [symbolic]
// CHECK:STDOUT:   %complete_type.987: <witness> = complete_type_witness %struct_type.base [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .T2 = %T2.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: %T1.type = class_decl @T1 [concrete = constants.%T1.generic] {
// CHECK:STDOUT:     %G1.patt: %pattern_type.98f = symbolic_binding_pattern G1, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %G1.loc4_15.2: type = bind_symbolic_name G1, 0 [symbolic = %G1.loc4_15.1 (constants.%G1)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %T2.decl: %T2.type = class_decl @T2 [concrete = constants.%T2.generic] {
// CHECK:STDOUT:     %G2.patt: %pattern_type.98f = symbolic_binding_pattern G2, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %G2.loc8_10.2: type = bind_symbolic_name G2, 0 [symbolic = %G2.loc8_10.1 (constants.%G2)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @T1.as.Destroy.impl(@T1.%G1.loc4_15.2: type) {
// CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic = %G1 (constants.%G1)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fdd)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%G1) [symbolic = %T1.as.Destroy.impl.Op.type (constants.%T1.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = struct_value () [symbolic = %T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %T1.as.Destroy.impl.Op.decl: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = fn_decl @T1.as.Destroy.impl.Op [symbolic = @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_26.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = value_param call_param0
// CHECK:STDOUT:       %.loc4_26.2: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1.18aea2.1)] {
// CHECK:STDOUT:         %.loc4_26.3: type = specific_constant constants.%T1.18aea2.1, @T1(constants.%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_26.3 [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @T2.as.Destroy.impl(@T2.%G2.loc8_10.2: type) {
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
// CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2) [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fb2)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op, @T2.as.Destroy.impl(%G2) [symbolic = %T2.as.Destroy.impl.Op.type (constants.%T2.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op: @T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.type (%T2.as.Destroy.impl.Op.type) = struct_value () [symbolic = %T2.as.Destroy.impl.Op (constants.%T2.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @T2.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %T2.as.Destroy.impl.Op.decl: @T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.type (%T2.as.Destroy.impl.Op.type) = fn_decl @T2.as.Destroy.impl.Op [symbolic = @T2.as.Destroy.impl.%T2.as.Destroy.impl.Op (constants.%T2.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @T2.as.Destroy.impl.Op.%pattern_type (%pattern_type.8f6) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T2.as.Destroy.impl.Op.%pattern_type (%pattern_type.8f6) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc8_21.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T2.as.Destroy.impl.Op.%ptr (%ptr.112) = value_param call_param0
// CHECK:STDOUT:       %.loc8_21.2: type = splice_block %Self.ref [symbolic = %T2 (constants.%T2)] {
// CHECK:STDOUT:         %.loc8_21.3: type = specific_constant constants.%T2, @T2(constants.%G2) [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc8_21.3 [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T2.as.Destroy.impl.Op.%ptr (%ptr.112) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %T2.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @T2.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @T1(%G1.loc4_15.2: type) {
// CHECK:STDOUT:   %G1.loc4_15.1: type = bind_symbolic_name G1, 0 [symbolic = %G1.loc4_15.1 (constants.%G1)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%G1.loc4_15.1) [symbolic = %T1.F.type (constants.%T1.F.type.ebcc3f.1)]
// CHECK:STDOUT:   %T1.F: @T1.%T1.F.type (%T1.F.type.ebcc3f.1) = struct_value () [symbolic = %T1.F (constants.%T1.F.0df085.1)]
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2: <specific function> = specific_function %T1.F, @T1.F(%G1.loc4_15.1) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn.1e2a8c.1)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T1.F.decl: @T1.%T1.F.type (%T1.F.type.ebcc3f.1) = fn_decl @T1.F [symbolic = @T1.%T1.F (constants.%T1.F.0df085.1)] {
// CHECK:STDOUT:       %self.patt: @T1.F.%pattern_type (%pattern_type.48ecf1.1) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.F.%pattern_type (%pattern_type.48ecf1.1) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.F.%T1 (%T1.18aea2.1) = value_param call_param0
// CHECK:STDOUT:       %.loc5_22.1: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1.18aea2.1)] {
// CHECK:STDOUT:         %.loc5_22.2: type = specific_constant constants.%T1.18aea2.1, @T1(constants.%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_22.2 [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.F.%T1 (%T1.18aea2.1) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1.18aea2.1 [symbolic = @T1.as.Destroy.impl.%T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:     impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%G1) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fdd)]
// CHECK:STDOUT:     %T1.F.specific_fn.loc6_1.1: <specific function> = specific_function %T1.F.decl, @T1.F(constants.%G1) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn.1e2a8c.1)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete = constants.%T1.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%T1.18aea2.1
// CHECK:STDOUT:     .F = %T1.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @T2(%G2.loc8_10.2: type) {
// CHECK:STDOUT:   %G2.loc8_10.1: type = bind_symbolic_name G2, 0 [symbolic = %G2.loc8_10.1 (constants.%G2)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.loc9_21.2: type = class_type @T1, @T1(%G2.loc8_10.1) [symbolic = %T1.loc9_21.2 (constants.%T1.18aea2.2)]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T1.loc9_21.2 [symbolic = %require_complete (constants.%require_complete.86d019.2)]
// CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2.loc8_10.1) [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:   %T2.elem: type = unbound_element_type %T2, %T1.loc9_21.2 [symbolic = %T2.elem (constants.%T2.elem)]
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%G2.loc8_10.1) [symbolic = %T1.F.type (constants.%T1.F.type.ebcc3f.2)]
// CHECK:STDOUT:   %T1.F: @T2.%T1.F.type (%T1.F.type.ebcc3f.2) = struct_value () [symbolic = %T1.F (constants.%T1.F.0df085.2)]
// CHECK:STDOUT:   %T1.F.specific_fn.loc10_1.2: <specific function> = specific_function %T1.F, @T1.F(%G2.loc8_10.1) [symbolic = %T1.F.specific_fn.loc10_1.2 (constants.%T1.F.specific_fn.1e2a8c.2)]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: @T2.%T1.loc9_21.2 (%T1.18aea2.2)} [symbolic = %struct_type.base (constants.%struct_type.base)]
// CHECK:STDOUT:   %complete_type.loc10_1.2: <witness> = complete_type_witness %struct_type.base [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.987)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T1.ref: %T1.type = name_ref T1, file.%T1.decl [concrete = constants.%T1.generic]
// CHECK:STDOUT:     %G2.ref: type = name_ref G2, %G2.loc8_10.2 [symbolic = %G2.loc8_10.1 (constants.%G2)]
// CHECK:STDOUT:     %T1.loc9_21.1: type = class_type @T1, @T1(constants.%G2) [symbolic = %T1.loc9_21.2 (constants.%T1.18aea2.2)]
// CHECK:STDOUT:     %.loc9: @T2.%T2.elem (%T2.elem) = base_decl %T1.loc9_21.1, element0 [concrete]
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T2 [symbolic = @T2.as.Destroy.impl.%T2 (constants.%T2)]
// CHECK:STDOUT:     impl_decl @T2.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T2.as.Destroy.impl(constants.%G2) [symbolic = @T2.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fb2)]
// CHECK:STDOUT:     %T1.F.specific_fn.loc10_1.1: <specific function> = specific_function constants.%T1.F.0df085.2, @T1.F(constants.%G2) [symbolic = %T1.F.specific_fn.loc10_1.2 (constants.%T1.F.specific_fn.1e2a8c.2)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T2.vtable [concrete = constants.%T2.vtable_decl]
// CHECK:STDOUT:     %complete_type.loc10_1.1: <witness> = complete_type_witness constants.%struct_type.base [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.987)]
// CHECK:STDOUT:     complete_type_witness = %complete_type.loc10_1.1
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%T2
// CHECK:STDOUT:     .T1 = <poisoned>
// CHECK:STDOUT:     .G2 = <poisoned>
// CHECK:STDOUT:     .base = %.loc9
// CHECK:STDOUT:     extend %T1.loc9_21.1
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @T1.vtable {
// CHECK:STDOUT:   @T1.%T1.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @T2.vtable {
// CHECK:STDOUT:   @T2.%T1.F.specific_fn.loc10_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @T1.F(@T1.%G1.loc4_15.2: type) {
// CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic = %G1 (constants.%G1)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %T1 [symbolic = %pattern_type (constants.%pattern_type.48ecf1.1)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T1 [symbolic = %require_complete (constants.%require_complete.86d019.1)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @T1.F.%T1 (%T1.18aea2.1)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @T1.as.Destroy.impl.Op(@T1.%G1.loc4_15.2: type) {
// CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic = %G1 (constants.%G1)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:   %ptr: type = ptr_type %T1 [symbolic = %ptr (constants.%ptr.997)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.f06)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @T2.as.Destroy.impl.Op(@T2.%G2.loc8_10.2: type) {
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
// CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2) [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:   %ptr: type = ptr_type %T2 [symbolic = %ptr (constants.%ptr.112)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8f6)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @T2.as.Destroy.impl.Op.%ptr (%ptr.112)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1(constants.%G1) {
// CHECK:STDOUT:   %G1.loc4_15.1 => constants.%G1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type => constants.%T1.F.type.ebcc3f.1
// CHECK:STDOUT:   %T1.F => constants.%T1.F.0df085.1
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2 => constants.%T1.F.specific_fn.1e2a8c.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.F(constants.%G1) {
// CHECK:STDOUT:   %G1 => constants.%G1
// CHECK:STDOUT:   %T1 => constants.%T1.18aea2.1
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.48ecf1.1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete.86d019.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl(constants.%G1) {
// CHECK:STDOUT:   %G1 => constants.%G1
// CHECK:STDOUT:   %T1 => constants.%T1.18aea2.1
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fdd
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl.Op(constants.%G1) {
// CHECK:STDOUT:   %G1 => constants.%G1
// CHECK:STDOUT:   %T1 => constants.%T1.18aea2.1
// CHECK:STDOUT:   %ptr => constants.%ptr.997
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f06
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T2(constants.%G2) {
// CHECK:STDOUT:   %G2.loc8_10.1 => constants.%G2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1(constants.%G2) {
// CHECK:STDOUT:   %G1.loc4_15.1 => constants.%G2
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type => constants.%T1.F.type.ebcc3f.2
// CHECK:STDOUT:   %T1.F => constants.%T1.F.0df085.2
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2 => constants.%T1.F.specific_fn.1e2a8c.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.F(constants.%G2) {
// CHECK:STDOUT:   %G1 => constants.%G2
// CHECK:STDOUT:   %T1 => constants.%T1.18aea2.2
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.48ecf1.2
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete.86d019.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T2.as.Destroy.impl(constants.%G2) {
// CHECK:STDOUT:   %G2 => constants.%G2
// CHECK:STDOUT:   %T2 => constants.%T2
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fb2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T2.as.Destroy.impl.Op(constants.%G2) {
// CHECK:STDOUT:   %G2 => constants.%G2
// CHECK:STDOUT:   %T2 => constants.%T2
// CHECK:STDOUT:   %ptr => constants.%ptr.112
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8f6
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- generic_derived_generic_context.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %T1.type: type = generic_class_type @T1 [concrete]
// CHECK:STDOUT:   %T1.generic: %T1.type = struct_value () [concrete]
// CHECK:STDOUT:   %T1.18aea2.1: type = class_type @T1, @T1(%G1) [symbolic]
// CHECK:STDOUT:   %pattern_type.48ecf1.1: type = pattern_type %T1.18aea2.1 [symbolic]
// CHECK:STDOUT:   %T1.F.type.ebcc3f.1: type = fn_type @T1.F, @T1(%G1) [symbolic]
// CHECK:STDOUT:   %T1.F.0df085.1: %T1.F.type.ebcc3f.1 = struct_value () [symbolic]
// CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
// CHECK:STDOUT:   %Destroy.impl_witness.fdd: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic]
// CHECK:STDOUT:   %ptr.997: type = ptr_type %T1.18aea2.1 [symbolic]
// CHECK:STDOUT:   %pattern_type.f06: type = pattern_type %ptr.997 [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%G1) [symbolic]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
// CHECK:STDOUT:   %T1.F.specific_fn.1e2a8c.1: <specific function> = specific_function %T1.F.0df085.1, @T1.F(%G1) [symbolic]
// CHECK:STDOUT:   %T1.vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete]
// CHECK:STDOUT:   %struct_type.vptr: type = struct_type {.<vptr>: %ptr.454} [concrete]
// CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
// CHECK:STDOUT:   %require_complete.86d019.1: <witness> = require_complete_type %T1.18aea2.1 [symbolic]
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic]
// CHECK:STDOUT:   %T2.type: type = generic_class_type @T2 [concrete]
// CHECK:STDOUT:   %T2.generic: %T2.type = struct_value () [concrete]
// CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2) [symbolic]
// CHECK:STDOUT:   %T3: type = class_type @T3, @T3(%G2) [symbolic]
// CHECK:STDOUT:   %T1.18aea2.2: type = class_type @T1, @T1(%G2) [symbolic]
// CHECK:STDOUT:   %T1.F.type.ebcc3f.2: type = fn_type @T1.F, @T1(%G2) [symbolic]
// CHECK:STDOUT:   %T1.F.0df085.2: %T1.F.type.ebcc3f.2 = struct_value () [symbolic]
// CHECK:STDOUT:   %pattern_type.48ecf1.2: type = pattern_type %T1.18aea2.2 [symbolic]
// CHECK:STDOUT:   %T1.F.specific_fn.1e2a8c.2: <specific function> = specific_function %T1.F.0df085.2, @T1.F(%G2) [symbolic]
// CHECK:STDOUT:   %require_complete.86d019.2: <witness> = require_complete_type %T1.18aea2.2 [symbolic]
// CHECK:STDOUT:   %T3.elem: type = unbound_element_type %T3, %T1.18aea2.2 [symbolic]
// CHECK:STDOUT:   %Destroy.impl_witness.7f3: <witness> = impl_witness @T3.%Destroy.impl_witness_table, @T3.as.Destroy.impl(%G2) [symbolic]
// CHECK:STDOUT:   %ptr.625: type = ptr_type %T3 [symbolic]
// CHECK:STDOUT:   %pattern_type.753: type = pattern_type %ptr.625 [symbolic]
// CHECK:STDOUT:   %T3.as.Destroy.impl.Op.type: type = fn_type @T3.as.Destroy.impl.Op, @T3.as.Destroy.impl(%G2) [symbolic]
// CHECK:STDOUT:   %T3.as.Destroy.impl.Op: %T3.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %T3.vtable_decl: ref %ptr.454 = vtable_decl @T3.vtable [concrete]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %T1.18aea2.2} [symbolic]
// CHECK:STDOUT:   %complete_type.987: <witness> = complete_type_witness %struct_type.base [symbolic]
// CHECK:STDOUT:   %Destroy.impl_witness.fb2: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic]
// CHECK:STDOUT:   %ptr.112: type = ptr_type %T2 [symbolic]
// CHECK:STDOUT:   %pattern_type.8f6: type = pattern_type %ptr.112 [symbolic]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op, @T2.as.Destroy.impl(%G2) [symbolic]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op: %T2.as.Destroy.impl.Op.type = struct_value () [symbolic]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Destroy = %Core.Destroy
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .T1 = %T1.decl
// CHECK:STDOUT:     .T2 = %T2.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %T1.decl: %T1.type = class_decl @T1 [concrete = constants.%T1.generic] {
// CHECK:STDOUT:     %G1.patt: %pattern_type.98f = symbolic_binding_pattern G1, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %G1.loc4_15.2: type = bind_symbolic_name G1, 0 [symbolic = %G1.loc4_15.1 (constants.%G1)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %T2.decl: %T2.type = class_decl @T2 [concrete = constants.%T2.generic] {
// CHECK:STDOUT:     %G2.patt: %pattern_type.98f = symbolic_binding_pattern G2, 0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %G2.loc8_10.2: type = bind_symbolic_name G2, 0 [symbolic = %G2.loc8_10.1 (constants.%G2)]
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @T1.as.Destroy.impl(@T1.%G1.loc4_15.2: type) {
// CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic = %G1 (constants.%G1)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fdd)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%G1) [symbolic = %T1.as.Destroy.impl.Op.type (constants.%T1.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %T1.as.Destroy.impl.Op: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = struct_value () [symbolic = %T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @T1.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %T1.as.Destroy.impl.Op.decl: @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.type (%T1.as.Destroy.impl.Op.type) = fn_decl @T1.as.Destroy.impl.Op [symbolic = @T1.as.Destroy.impl.%T1.as.Destroy.impl.Op (constants.%T1.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.as.Destroy.impl.Op.%pattern_type (%pattern_type.f06) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc4_26.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = value_param call_param0
// CHECK:STDOUT:       %.loc4_26.2: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1.18aea2.1)] {
// CHECK:STDOUT:         %.loc4_26.3: type = specific_constant constants.%T1.18aea2.1, @T1(constants.%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc4_26.3 [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.as.Destroy.impl.Op.%ptr (%ptr.997) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %T1.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @T1.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @T3.as.Destroy.impl(@T2.%G2.loc8_10.2: type) {
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
// CHECK:STDOUT:   %T3: type = class_type @T3, @T3(%G2) [symbolic = %T3 (constants.%T3)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T3.%Destroy.impl_witness_table, @T3.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7f3)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T3.as.Destroy.impl.Op.type: type = fn_type @T3.as.Destroy.impl.Op, @T3.as.Destroy.impl(%G2) [symbolic = %T3.as.Destroy.impl.Op.type (constants.%T3.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %T3.as.Destroy.impl.Op: @T3.as.Destroy.impl.%T3.as.Destroy.impl.Op.type (%T3.as.Destroy.impl.Op.type) = struct_value () [symbolic = %T3.as.Destroy.impl.Op (constants.%T3.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @T3.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %T3.as.Destroy.impl.Op.decl: @T3.as.Destroy.impl.%T3.as.Destroy.impl.Op.type (%T3.as.Destroy.impl.Op.type) = fn_decl @T3.as.Destroy.impl.Op [symbolic = @T3.as.Destroy.impl.%T3.as.Destroy.impl.Op (constants.%T3.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @T3.as.Destroy.impl.Op.%pattern_type (%pattern_type.753) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T3.as.Destroy.impl.Op.%pattern_type (%pattern_type.753) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc9_12.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T3.as.Destroy.impl.Op.%ptr (%ptr.625) = value_param call_param0
// CHECK:STDOUT:       %.loc9_12.2: type = splice_block %Self.ref [symbolic = %T3 (constants.%T3)] {
// CHECK:STDOUT:         %.loc9_12.3: type = specific_constant constants.%T3, @T3(constants.%G2) [symbolic = %T3 (constants.%T3)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc9_12.3 [symbolic = %T3 (constants.%T3)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T3.as.Destroy.impl.Op.%ptr (%ptr.625) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %T3.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @T3.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @T2.as.Destroy.impl(@T2.%G2.loc8_10.2: type) {
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
// CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2) [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fb2)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op, @T2.as.Destroy.impl(%G2) [symbolic = %T2.as.Destroy.impl.Op.type (constants.%T2.as.Destroy.impl.Op.type)]
// CHECK:STDOUT:   %T2.as.Destroy.impl.Op: @T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.type (%T2.as.Destroy.impl.Op.type) = struct_value () [symbolic = %T2.as.Destroy.impl.Op (constants.%T2.as.Destroy.impl.Op)]
// CHECK:STDOUT:
// CHECK:STDOUT:   impl: @T2.%Self.ref as constants.%Destroy.type {
// CHECK:STDOUT:     %T2.as.Destroy.impl.Op.decl: @T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.type (%T2.as.Destroy.impl.Op.type) = fn_decl @T2.as.Destroy.impl.Op [symbolic = @T2.as.Destroy.impl.%T2.as.Destroy.impl.Op (constants.%T2.as.Destroy.impl.Op)] {
// CHECK:STDOUT:       %self.patt: @T2.as.Destroy.impl.Op.%pattern_type (%pattern_type.8f6) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T2.as.Destroy.impl.Op.%pattern_type (%pattern_type.8f6) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:       %.loc8_21.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T2.as.Destroy.impl.Op.%ptr (%ptr.112) = value_param call_param0
// CHECK:STDOUT:       %.loc8_21.2: type = splice_block %Self.ref [symbolic = %T2 (constants.%T2)] {
// CHECK:STDOUT:         %.loc8_21.3: type = specific_constant constants.%T2, @T2(constants.%G2) [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc8_21.3 [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T2.as.Destroy.impl.Op.%ptr (%ptr.112) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Op = %T2.as.Destroy.impl.Op.decl
// CHECK:STDOUT:     witness = @T2.%Destroy.impl_witness
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @T1(%G1.loc4_15.2: type) {
// CHECK:STDOUT:   %G1.loc4_15.1: type = bind_symbolic_name G1, 0 [symbolic = %G1.loc4_15.1 (constants.%G1)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%G1.loc4_15.1) [symbolic = %T1.F.type (constants.%T1.F.type.ebcc3f.1)]
// CHECK:STDOUT:   %T1.F: @T1.%T1.F.type (%T1.F.type.ebcc3f.1) = struct_value () [symbolic = %T1.F (constants.%T1.F.0df085.1)]
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2: <specific function> = specific_function %T1.F, @T1.F(%G1.loc4_15.1) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn.1e2a8c.1)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T1.F.decl: @T1.%T1.F.type (%T1.F.type.ebcc3f.1) = fn_decl @T1.F [symbolic = @T1.%T1.F (constants.%T1.F.0df085.1)] {
// CHECK:STDOUT:       %self.patt: @T1.F.%pattern_type (%pattern_type.48ecf1.1) = binding_pattern self [concrete]
// CHECK:STDOUT:       %self.param_patt: @T1.F.%pattern_type (%pattern_type.48ecf1.1) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %self.param: @T1.F.%T1 (%T1.18aea2.1) = value_param call_param0
// CHECK:STDOUT:       %.loc5_22.1: type = splice_block %Self.ref [symbolic = %T1 (constants.%T1.18aea2.1)] {
// CHECK:STDOUT:         %.loc5_22.2: type = specific_constant constants.%T1.18aea2.1, @T1(constants.%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc5_22.2 [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:       }
// CHECK:STDOUT:       %self: @T1.F.%T1 (%T1.18aea2.1) = bind_name self, %self.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1.18aea2.1 [symbolic = @T1.as.Destroy.impl.%T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:     impl_decl @T1.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%G1) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fdd)]
// CHECK:STDOUT:     %T1.F.specific_fn.loc6_1.1: <specific function> = specific_function %T1.F.decl, @T1.F(constants.%G1) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn.1e2a8c.1)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete = constants.%T1.vtable_decl]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%T1.18aea2.1
// CHECK:STDOUT:     .F = %T1.F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @T2(%G2.loc8_10.2: type) {
// CHECK:STDOUT:   %G2.loc8_10.1: type = bind_symbolic_name G2, 0 [symbolic = %G2.loc8_10.1 (constants.%G2)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T3: type = class_type @T3, @T3(%G2.loc8_10.1) [symbolic = %T3 (constants.%T3)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T3.decl: type = class_decl @T3 [symbolic = @T2.%T3 (constants.%T3)] {} {}
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T2 [symbolic = @T2.as.Destroy.impl.%T2 (constants.%T2)]
// CHECK:STDOUT:     impl_decl @T2.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T2.as.Destroy.impl(constants.%G2) [symbolic = @T2.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fb2)]
// CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT:     complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%T2
// CHECK:STDOUT:     .T3 = %T3.decl
// CHECK:STDOUT:     .T1 = <poisoned>
// CHECK:STDOUT:     .G2 = <poisoned>
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @T3(@T2.%G2.loc8_10.2: type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
// CHECK:STDOUT:   %T1.loc10_24.2: type = class_type @T1, @T1(%G2) [symbolic = %T1.loc10_24.2 (constants.%T1.18aea2.2)]
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T1.loc10_24.2 [symbolic = %require_complete (constants.%require_complete.86d019.2)]
// CHECK:STDOUT:   %T3: type = class_type @T3, @T3(%G2) [symbolic = %T3 (constants.%T3)]
// CHECK:STDOUT:   %T3.elem: type = unbound_element_type %T3, %T1.loc10_24.2 [symbolic = %T3.elem (constants.%T3.elem)]
// CHECK:STDOUT:   %T1.F.type: type = fn_type @T1.F, @T1(%G2) [symbolic = %T1.F.type (constants.%T1.F.type.ebcc3f.2)]
// CHECK:STDOUT:   %T1.F: @T3.%T1.F.type (%T1.F.type.ebcc3f.2) = struct_value () [symbolic = %T1.F (constants.%T1.F.0df085.2)]
// CHECK:STDOUT:   %T1.F.specific_fn.loc11_3.2: <specific function> = specific_function %T1.F, @T1.F(%G2) [symbolic = %T1.F.specific_fn.loc11_3.2 (constants.%T1.F.specific_fn.1e2a8c.2)]
// CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: @T3.%T1.loc10_24.2 (%T1.18aea2.2)} [symbolic = %struct_type.base (constants.%struct_type.base)]
// CHECK:STDOUT:   %complete_type.loc11_3.2: <witness> = complete_type_witness %struct_type.base [symbolic = %complete_type.loc11_3.2 (constants.%complete_type.987)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T1.ref: %T1.type = name_ref T1, file.%T1.decl [concrete = constants.%T1.generic]
// CHECK:STDOUT:     %G2.ref: type = name_ref G2, @T2.%G2.loc8_10.2 [symbolic = %G2 (constants.%G2)]
// CHECK:STDOUT:     %T1.loc10_24.1: type = class_type @T1, @T1(constants.%G2) [symbolic = %T1.loc10_24.2 (constants.%T1.18aea2.2)]
// CHECK:STDOUT:     %.loc10: @T3.%T3.elem (%T3.elem) = base_decl %T1.loc10_24.1, element0 [concrete]
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T3 [symbolic = @T3.as.Destroy.impl.%T3 (constants.%T3)]
// CHECK:STDOUT:     impl_decl @T3.as.Destroy.impl [concrete] {} {}
// CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T3.as.Destroy.impl.%T3.as.Destroy.impl.Op.decl), @T3.as.Destroy.impl [concrete]
// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T3.as.Destroy.impl(constants.%G2) [symbolic = @T3.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7f3)]
// CHECK:STDOUT:     %T1.F.specific_fn.loc11_3.1: <specific function> = specific_function constants.%T1.F.0df085.2, @T1.F(constants.%G2) [symbolic = %T1.F.specific_fn.loc11_3.2 (constants.%T1.F.specific_fn.1e2a8c.2)]
// CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T3.vtable [concrete = constants.%T3.vtable_decl]
// CHECK:STDOUT:     %complete_type.loc11_3.1: <witness> = complete_type_witness constants.%struct_type.base [symbolic = %complete_type.loc11_3.2 (constants.%complete_type.987)]
// CHECK:STDOUT:     complete_type_witness = %complete_type.loc11_3.1
// CHECK:STDOUT:     vtable_decl = %vtable_decl
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%T3
// CHECK:STDOUT:     .T1 = <poisoned>
// CHECK:STDOUT:     .G2 = <poisoned>
// CHECK:STDOUT:     .base = %.loc10
// CHECK:STDOUT:     extend %T1.loc10_24.1
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @T1.vtable {
// CHECK:STDOUT:   @T1.%T1.F.specific_fn.loc6_1.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: vtable @T3.vtable {
// CHECK:STDOUT:   @T3.%T1.F.specific_fn.loc11_3.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic virtual fn @T1.F(@T1.%G1.loc4_15.2: type) {
// CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic = %G1 (constants.%G1)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %T1 [symbolic = %pattern_type (constants.%pattern_type.48ecf1.1)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T1 [symbolic = %require_complete (constants.%require_complete.86d019.1)]
// CHECK:STDOUT:
// CHECK:STDOUT:   virtual fn(%self.param: @T1.F.%T1 (%T1.18aea2.1)) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     return
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @T1.as.Destroy.impl.Op(@T1.%G1.loc4_15.2: type) {
// CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic = %G1 (constants.%G1)]
// CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
// CHECK:STDOUT:   %ptr: type = ptr_type %T1 [symbolic = %ptr (constants.%ptr.997)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.f06)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @T1.as.Destroy.impl.Op.%ptr (%ptr.997)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @T3.as.Destroy.impl.Op(@T2.%G2.loc8_10.2: type) {
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
// CHECK:STDOUT:   %T3: type = class_type @T3, @T3(%G2) [symbolic = %T3 (constants.%T3)]
// CHECK:STDOUT:   %ptr: type = ptr_type %T3 [symbolic = %ptr (constants.%ptr.625)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.753)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @T3.as.Destroy.impl.Op.%ptr (%ptr.625)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @T2.as.Destroy.impl.Op(@T2.%G2.loc8_10.2: type) {
// CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
// CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2) [symbolic = %T2 (constants.%T2)]
// CHECK:STDOUT:   %ptr: type = ptr_type %T2 [symbolic = %ptr (constants.%ptr.112)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8f6)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%self.param: @T2.as.Destroy.impl.Op.%ptr (%ptr.112)) = "no_op";
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1(constants.%G1) {
// CHECK:STDOUT:   %G1.loc4_15.1 => constants.%G1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type => constants.%T1.F.type.ebcc3f.1
// CHECK:STDOUT:   %T1.F => constants.%T1.F.0df085.1
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2 => constants.%T1.F.specific_fn.1e2a8c.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.F(constants.%G1) {
// CHECK:STDOUT:   %G1 => constants.%G1
// CHECK:STDOUT:   %T1 => constants.%T1.18aea2.1
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.48ecf1.1
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete.86d019.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl(constants.%G1) {
// CHECK:STDOUT:   %G1 => constants.%G1
// CHECK:STDOUT:   %T1 => constants.%T1.18aea2.1
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fdd
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.as.Destroy.impl.Op(constants.%G1) {
// CHECK:STDOUT:   %G1 => constants.%G1
// CHECK:STDOUT:   %T1 => constants.%T1.18aea2.1
// CHECK:STDOUT:   %ptr => constants.%ptr.997
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f06
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T2(constants.%G2) {
// CHECK:STDOUT:   %G2.loc8_10.1 => constants.%G2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T3(constants.%G2) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1(constants.%G2) {
// CHECK:STDOUT:   %G1.loc4_15.1 => constants.%G2
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %T1.F.type => constants.%T1.F.type.ebcc3f.2
// CHECK:STDOUT:   %T1.F => constants.%T1.F.0df085.2
// CHECK:STDOUT:   %T1.F.specific_fn.loc6_1.2 => constants.%T1.F.specific_fn.1e2a8c.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T1.F(constants.%G2) {
// CHECK:STDOUT:   %G1 => constants.%G2
// CHECK:STDOUT:   %T1 => constants.%T1.18aea2.2
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.48ecf1.2
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%require_complete.86d019.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T3.as.Destroy.impl(constants.%G2) {
// CHECK:STDOUT:   %G2 => constants.%G2
// CHECK:STDOUT:   %T3 => constants.%T3
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7f3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T3.as.Destroy.impl.Op(constants.%G2) {
// CHECK:STDOUT:   %G2 => constants.%G2
// CHECK:STDOUT:   %T3 => constants.%T3
// CHECK:STDOUT:   %ptr => constants.%ptr.625
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.753
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T2.as.Destroy.impl(constants.%G2) {
// CHECK:STDOUT:   %G2 => constants.%G2
// CHECK:STDOUT:   %T2 => constants.%T2
// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fb2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T2.as.Destroy.impl.Op(constants.%G2) {
// CHECK:STDOUT:   %G2 => constants.%G2
// CHECK:STDOUT:   %T2 => constants.%T2
// CHECK:STDOUT:   %ptr => constants.%ptr.112
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8f6
// CHECK:STDOUT: }
// CHECK:STDOUT: