// 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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/generic/base_is_generic.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/generic/base_is_generic.carbon

// --- extend_generic_base.carbon

library "[[@TEST_NAME]]";

base class Base(T:! type) {
  var x: T;
}

class Param {
  var y: i32;
}

class Derived {
  extend base: Base(Param);
}

fn DoubleFieldAccess(d: Derived) -> i32 {
  return d.x.y;
}

// --- import.carbon

library "[[@TEST_NAME]]";

import library "extend_generic_base";

fn ImportedDoubleFieldAccess(d: Derived) -> i32 {
  return d.x.y;
}

// --- fail_todo_extend_symbolic_base.carbon

library "[[@TEST_NAME]]";

class C(T:! type) {
  // CHECK:STDERR: fail_todo_extend_symbolic_base.carbon:[[@LINE+4]]:16: error: deriving from final type `T`; base type must be an `abstract` or `base` class [BaseIsFinal]
  // CHECK:STDERR:   extend base: T;
  // CHECK:STDERR:                ^
  // CHECK:STDERR:
  extend base: T;
}

base class X {
  fn G() {}
}

fn F() {
  C(X).G();
}

// --- extend_generic_symbolic_base.carbon

library "[[@TEST_NAME]]";

base class X(U:! type) {
  fn G() -> U { return G(); }
}

class C(T:! type) {
  extend base: X(T);
}

fn F() {
  let i: i32 = C(i32).G();
}


// --- fail_todo_import_extend_generic_symbolic_base.carbon

library "[[@TEST_NAME]]";

import library "extend_generic_symbolic_base";

fn H() {
  // CHECK:STDERR: fail_todo_import_extend_generic_symbolic_base.carbon:[[@LINE+6]]:3: error: cannot implicitly convert from `T` to `i32` [ImplicitAsConversionFailure]
  // CHECK:STDERR:   let j: i32 = C(i32).G();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR: fail_todo_import_extend_generic_symbolic_base.carbon:[[@LINE+3]]:3: note: type `T` does not implement interface `ImplicitAs(i32)` [MissingImplInMemberAccessNote]
  // CHECK:STDERR:   let j: i32 = C(i32).G();
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~
  let j: i32 = C(i32).G();
}

// CHECK:STDOUT: --- extend_generic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT:   %Base.type: type = generic_class_type @Base [template]
// CHECK:STDOUT:   %Base.1: %Base.type = struct_value () [template]
// CHECK:STDOUT:   %Base.2: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %.1: type = unbound_element_type %Base.2, %T [symbolic]
// CHECK:STDOUT:   %.2: type = struct_type {.x: %T} [symbolic]
// CHECK:STDOUT:   %.3: <witness> = complete_type_witness %.2 [symbolic]
// CHECK:STDOUT:   %Param: type = class_type @Param [template]
// CHECK:STDOUT:   %.4: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
// CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
// CHECK:STDOUT:   %i32: type = int_type signed, %.4 [template]
// CHECK:STDOUT:   %.5: type = unbound_element_type %Param, %i32 [template]
// CHECK:STDOUT:   %.6: type = struct_type {.y: %i32} [template]
// CHECK:STDOUT:   %.7: <witness> = complete_type_witness %.6 [template]
// CHECK:STDOUT:   %Derived: type = class_type @Derived [template]
// CHECK:STDOUT:   %Base.3: type = class_type @Base, @Base(%Param) [template]
// CHECK:STDOUT:   %.8: type = unbound_element_type %Base.3, %Param [template]
// CHECK:STDOUT:   %.9: type = struct_type {.x: %Param} [template]
// CHECK:STDOUT:   %.10: <witness> = complete_type_witness %.9 [template]
// CHECK:STDOUT:   %.14: type = unbound_element_type %Derived, %Base.3 [template]
// CHECK:STDOUT:   %.15: type = struct_type {.base: %Base.3} [template]
// CHECK:STDOUT:   %.16: <witness> = complete_type_witness %.15 [template]
// CHECK:STDOUT:   %DoubleFieldAccess.type: type = fn_type @DoubleFieldAccess [template]
// CHECK:STDOUT:   %DoubleFieldAccess: %DoubleFieldAccess.type = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT:     .Int = %import_ref
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [template] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Base = %Base.decl
// CHECK:STDOUT:     .Param = %Param.decl
// CHECK:STDOUT:     .Derived = %Derived.decl
// CHECK:STDOUT:     .DoubleFieldAccess = %DoubleFieldAccess.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Base.decl: %Base.type = class_decl @Base [template = constants.%Base.1] {
// CHECK:STDOUT:     %T.patt.loc4_17.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_17.2 (constants.%T.patt)]
// CHECK:STDOUT:     %T.param_patt: type = value_param_pattern %T.patt.loc4_17.1, runtime_param<invalid> [symbolic = %T.patt.loc4_17.2 (constants.%T.patt)]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %T.param: type = value_param runtime_param<invalid>
// CHECK:STDOUT:     %T.loc4_17.1: type = bind_symbolic_name T, 0, %T.param [symbolic = %T.loc4_17.2 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Param.decl: type = class_decl @Param [template = constants.%Param] {} {}
// CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [template = constants.%Derived] {} {}
// CHECK:STDOUT:   %DoubleFieldAccess.decl: %DoubleFieldAccess.type = fn_decl @DoubleFieldAccess [template = constants.%DoubleFieldAccess] {
// CHECK:STDOUT:     %d.patt: %Derived = binding_pattern d
// CHECK:STDOUT:     %d.param_patt: %Derived = value_param_pattern %d.patt, runtime_param0
// CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
// CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param1
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %Derived.ref: type = name_ref Derived, file.%Derived.decl [template = constants.%Derived]
// CHECK:STDOUT:     %.loc16_37.1: Core.IntLiteral = int_value 32 [template = constants.%.4]
// CHECK:STDOUT:     %int.make_type_signed: init type = call constants.%Int(%.loc16_37.1) [template = constants.%i32]
// CHECK:STDOUT:     %.loc16_37.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
// CHECK:STDOUT:     %.loc16_37.3: type = converted %int.make_type_signed, %.loc16_37.2 [template = constants.%i32]
// CHECK:STDOUT:     %d.param: %Derived = value_param runtime_param0
// CHECK:STDOUT:     %d: %Derived = bind_name d, %d.param
// CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param1
// CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc4_17.1: type) {
// CHECK:STDOUT:   %T.loc4_17.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_17.2 (constants.%T)]
// CHECK:STDOUT:   %T.patt.loc4_17.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_17.2 (constants.%T.patt)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T.loc4_17.2) [symbolic = %Base (constants.%Base.2)]
// CHECK:STDOUT:   %.loc5_8.2: type = unbound_element_type @Base.%Base (%Base.2), @Base.%T.loc4_17.2 (%T) [symbolic = %.loc5_8.2 (constants.%.1)]
// CHECK:STDOUT:   %.loc6_1.2: type = struct_type {.x: @Base.%T.loc4_17.2 (%T)} [symbolic = %.loc6_1.2 (constants.%.2)]
// CHECK:STDOUT:   %.loc6_1.3: <witness> = complete_type_witness @Base.%.loc6_1.2 (%.2) [symbolic = %.loc6_1.3 (constants.%.3)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc4_17.1 [symbolic = %T.loc4_17.2 (constants.%T)]
// CHECK:STDOUT:     %.loc5_8.1: @Base.%.loc5_8.2 (%.1) = field_decl x, element0 [template]
// CHECK:STDOUT:     %.loc6_1.1: <witness> = complete_type_witness %.2 [symbolic = %.loc6_1.3 (constants.%.3)]
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%Base.2
// CHECK:STDOUT:     .x = %.loc5_8.1
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Param {
// CHECK:STDOUT:   %.loc9_10.1: Core.IntLiteral = int_value 32 [template = constants.%.4]
// CHECK:STDOUT:   %int.make_type_signed: init type = call constants.%Int(%.loc9_10.1) [template = constants.%i32]
// CHECK:STDOUT:   %.loc9_10.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
// CHECK:STDOUT:   %.loc9_10.3: type = converted %int.make_type_signed, %.loc9_10.2 [template = constants.%i32]
// CHECK:STDOUT:   %.loc9_8: %.5 = field_decl y, element0 [template]
// CHECK:STDOUT:   %.loc10: <witness> = complete_type_witness %.6 [template = constants.%.7]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Param
// CHECK:STDOUT:   .y = %.loc9_8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT:   %Base.ref: %Base.type = name_ref Base, file.%Base.decl [template = constants.%Base.1]
// CHECK:STDOUT:   %Param.ref: type = name_ref Param, file.%Param.decl [template = constants.%Param]
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(constants.%Param) [template = constants.%Base.3]
// CHECK:STDOUT:   %.loc13: %.14 = base_decl %Base.3, element0 [template]
// CHECK:STDOUT:   %.loc14: <witness> = complete_type_witness %.15 [template = constants.%.16]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Derived
// CHECK:STDOUT:   .base = %.loc13
// CHECK:STDOUT:   extend %Base
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @DoubleFieldAccess(%d.param_patt: %Derived) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %d.ref: %Derived = name_ref d, %d
// CHECK:STDOUT:   %x.ref: %.8 = name_ref x, @Base.%.loc5_8.1 [template = @Base.%.loc5_8.1]
// CHECK:STDOUT:   %.loc17_11.1: ref %Base.3 = class_element_access %d.ref, element0
// CHECK:STDOUT:   %.loc17_11.2: ref %Base.3 = converted %d.ref, %.loc17_11.1
// CHECK:STDOUT:   %.loc17_11.3: ref %Param = class_element_access %.loc17_11.2, element0
// CHECK:STDOUT:   %y.ref: %.5 = name_ref y, @Param.%.loc9_8 [template = @Param.%.loc9_8]
// CHECK:STDOUT:   %.loc17_13.1: ref %i32 = class_element_access %.loc17_11.3, element0
// CHECK:STDOUT:   %.loc17_13.2: %i32 = bind_value %.loc17_13.1
// CHECK:STDOUT:   return %.loc17_13.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T.loc4_17.2 => constants.%T
// CHECK:STDOUT:   %T.patt.loc4_17.2 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(%T.loc4_17.2) {
// CHECK:STDOUT:   %T.loc4_17.2 => constants.%T
// CHECK:STDOUT:   %T.patt.loc4_17.2 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%Param) {
// CHECK:STDOUT:   %T.loc4_17.2 => constants.%Param
// CHECK:STDOUT:   %T.patt.loc4_17.2 => constants.%Param
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base => constants.%Base.3
// CHECK:STDOUT:   %.loc5_8.2 => constants.%.8
// CHECK:STDOUT:   %.loc6_1.2 => constants.%.9
// CHECK:STDOUT:   %.loc6_1.3 => constants.%.10
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Derived: type = class_type @Derived [template]
// CHECK:STDOUT:   %Param: type = class_type @Param [template]
// CHECK:STDOUT:   %.1: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT:   %i32: type = int_type signed, %.1 [template]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %.4: type = struct_type {.x: %T} [symbolic]
// CHECK:STDOUT:   %.5: <witness> = complete_type_witness %.4 [symbolic]
// CHECK:STDOUT:   %Base.2: type = class_type @Base, @Base(%T) [symbolic]
// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT:   %Base.3: type = class_type @Base, @Base(%Param) [template]
// CHECK:STDOUT:   %.9: type = unbound_element_type %Base.2, %T [symbolic]
// CHECK:STDOUT:   %.10: type = unbound_element_type %Base.3, %Param [template]
// CHECK:STDOUT:   %.11: type = struct_type {.x: %Param} [template]
// CHECK:STDOUT:   %.12: <witness> = complete_type_witness %.11 [template]
// CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
// CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
// CHECK:STDOUT:   %ImportedDoubleFieldAccess.type: type = fn_type @ImportedDoubleFieldAccess [template]
// CHECK:STDOUT:   %ImportedDoubleFieldAccess: %ImportedDoubleFieldAccess.type = struct_value () [template]
// CHECK:STDOUT:   %.17: type = unbound_element_type %Param, %i32 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %import_ref.1 = import_ref Main//extend_generic_base, inst+9, unloaded
// CHECK:STDOUT:   %import_ref.2 = import_ref Main//extend_generic_base, inst+26, unloaded
// CHECK:STDOUT:   %import_ref.3: type = import_ref Main//extend_generic_base, inst+50, loaded [template = constants.%Derived]
// CHECK:STDOUT:   %import_ref.4 = import_ref Main//extend_generic_base, inst+80, unloaded
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT:     .Int = %import_ref.11
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %import_ref.5 = import_ref Main//extend_generic_base, inst+27, unloaded
// CHECK:STDOUT:   %import_ref.6: %.17 = import_ref Main//extend_generic_base, inst+46, loaded [template = %.1]
// CHECK:STDOUT:   %import_ref.7 = import_ref Main//extend_generic_base, inst+15, unloaded
// CHECK:STDOUT:   %import_ref.8: @Base.%.1 (%.9) = import_ref Main//extend_generic_base, inst+18, loaded [template = %.2]
// CHECK:STDOUT:   %import_ref.9 = import_ref Main//extend_generic_base, inst+51, unloaded
// CHECK:STDOUT:   %import_ref.10 = import_ref Main//extend_generic_base, inst+63, unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [template] {
// CHECK:STDOUT:     .Base = imports.%import_ref.1
// CHECK:STDOUT:     .Param = imports.%import_ref.2
// CHECK:STDOUT:     .Derived = imports.%import_ref.3
// CHECK:STDOUT:     .DoubleFieldAccess = imports.%import_ref.4
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .ImportedDoubleFieldAccess = %ImportedDoubleFieldAccess.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %default.import = import <invalid>
// CHECK:STDOUT:   %ImportedDoubleFieldAccess.decl: %ImportedDoubleFieldAccess.type = fn_decl @ImportedDoubleFieldAccess [template = constants.%ImportedDoubleFieldAccess] {
// CHECK:STDOUT:     %d.patt: %Derived = binding_pattern d
// CHECK:STDOUT:     %d.param_patt: %Derived = value_param_pattern %d.patt, runtime_param0
// CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
// CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param1
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %Derived.ref: type = name_ref Derived, imports.%import_ref.3 [template = constants.%Derived]
// CHECK:STDOUT:     %.loc6_45.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT:     %int.make_type_signed: init type = call constants.%Int(%.loc6_45.1) [template = constants.%i32]
// CHECK:STDOUT:     %.loc6_45.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
// CHECK:STDOUT:     %.loc6_45.3: type = converted %int.make_type_signed, %.loc6_45.2 [template = constants.%i32]
// CHECK:STDOUT:     %d.param: %Derived = value_param runtime_param0
// CHECK:STDOUT:     %d: %Derived = bind_name d, %d.param
// CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param1
// CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%import_ref.9
// CHECK:STDOUT:   .base = imports.%import_ref.10
// CHECK:STDOUT:   extend constants.%Base.3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Param {
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%import_ref.5
// CHECK:STDOUT:   .y = imports.%import_ref.6
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(constants.%T: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.2)]
// CHECK:STDOUT:   %.1: type = unbound_element_type @Base.%Base (%Base.2), @Base.%T (%T) [symbolic = %.1 (constants.%.9)]
// CHECK:STDOUT:   %.2: type = struct_type {.x: @Base.%T (%T)} [symbolic = %.2 (constants.%.4)]
// CHECK:STDOUT:   %.3: <witness> = complete_type_witness @Base.%.2 (%.4) [symbolic = %.3 (constants.%.5)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = imports.%import_ref.7
// CHECK:STDOUT:     .x = imports.%import_ref.8
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @ImportedDoubleFieldAccess(%d.param_patt: %Derived) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %d.ref: %Derived = name_ref d, %d
// CHECK:STDOUT:   %x.ref: %.10 = name_ref x, imports.%import_ref.8 [template = imports.%.2]
// CHECK:STDOUT:   %.loc7_11.1: ref %Base.3 = class_element_access %d.ref, element0
// CHECK:STDOUT:   %.loc7_11.2: ref %Base.3 = converted %d.ref, %.loc7_11.1
// CHECK:STDOUT:   %.loc7_11.3: ref %Param = class_element_access %.loc7_11.2, element0
// CHECK:STDOUT:   %y.ref: %.17 = name_ref y, imports.%import_ref.6 [template = imports.%.1]
// CHECK:STDOUT:   %.loc7_13.1: ref %i32 = class_element_access %.loc7_11.3, element0
// CHECK:STDOUT:   %.loc7_13.2: %i32 = bind_value %.loc7_13.1
// CHECK:STDOUT:   return %.loc7_13.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T.patt => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%Param) {
// CHECK:STDOUT:   %T => constants.%Param
// CHECK:STDOUT:   %T.patt => constants.%Param
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %Base => constants.%Base.3
// CHECK:STDOUT:   %.1 => constants.%.10
// CHECK:STDOUT:   %.2 => constants.%.11
// CHECK:STDOUT:   %.3 => constants.%.12
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T.patt => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_todo_extend_symbolic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT:   %C.type: type = generic_class_type @C [template]
// CHECK:STDOUT:   %C.1: %C.type = struct_value () [template]
// CHECK:STDOUT:   %C.2: type = class_type @C, @C(%T) [symbolic]
// CHECK:STDOUT:   %X: type = class_type @X [template]
// CHECK:STDOUT:   %G.type: type = fn_type @G [template]
// CHECK:STDOUT:   %G: %G.type = struct_value () [template]
// CHECK:STDOUT:   %.1: type = struct_type {} [template]
// CHECK:STDOUT:   %.2: <witness> = complete_type_witness %.1 [template]
// CHECK:STDOUT:   %F.type: type = fn_type @F [template]
// CHECK:STDOUT:   %F: %F.type = struct_value () [template]
// CHECK:STDOUT:   %C.3: type = class_type @C, @C(%X) [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [template] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .C = %C.decl
// CHECK:STDOUT:     .X = %X.decl
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %C.decl: %C.type = class_decl @C [template = constants.%C.1] {
// CHECK:STDOUT:     %T.patt.loc4_9.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_9.2 (constants.%T.patt)]
// CHECK:STDOUT:     %T.param_patt: type = value_param_pattern %T.patt.loc4_9.1, runtime_param<invalid> [symbolic = %T.patt.loc4_9.2 (constants.%T.patt)]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %T.param: type = value_param runtime_param<invalid>
// CHECK:STDOUT:     %T.loc4_9.1: type = bind_symbolic_name T, 0, %T.param [symbolic = %T.loc4_9.2 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %X.decl: type = class_decl @X [template = constants.%X] {} {}
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @C(%T.loc4_9.1: type) {
// CHECK:STDOUT:   %T.loc4_9.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_9.2 (constants.%T)]
// CHECK:STDOUT:   %T.patt.loc4_9.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_9.2 (constants.%T.patt)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc4_9.1 [symbolic = %T.loc4_9.2 (constants.%T)]
// CHECK:STDOUT:     %.loc9: <error> = base_decl <error>, element0 [template]
// CHECK:STDOUT:     %.loc10: <witness> = complete_type_witness <error> [template = <error>]
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%C.2
// CHECK:STDOUT:     .base = %.loc9
// CHECK:STDOUT:     has_error
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @X {
// CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {} {}
// CHECK:STDOUT:   %.loc14: <witness> = complete_type_witness %.1 [template = constants.%.2]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%X
// CHECK:STDOUT:   .G = %G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %C.ref: %C.type = name_ref C, file.%C.decl [template = constants.%C.1]
// CHECK:STDOUT:   %X.ref: type = name_ref X, file.%X.decl [template = constants.%X]
// CHECK:STDOUT:   %C: type = class_type @C, @C(constants.%X) [template = constants.%C.3]
// CHECK:STDOUT:   %G.ref: <error> = name_ref G, <error> [template = <error>]
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%T) {
// CHECK:STDOUT:   %T.loc4_9.2 => constants.%T
// CHECK:STDOUT:   %T.patt.loc4_9.2 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%X) {
// CHECK:STDOUT:   %T.loc4_9.2 => constants.%X
// CHECK:STDOUT:   %T.patt.loc4_9.2 => constants.%X
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- extend_generic_symbolic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
// CHECK:STDOUT:   %U.patt: type = symbolic_binding_pattern U, 0 [symbolic]
// CHECK:STDOUT:   %X.type: type = generic_class_type @X [template]
// CHECK:STDOUT:   %X.1: %X.type = struct_value () [template]
// CHECK:STDOUT:   %X.2: type = class_type @X, @X(%U) [symbolic]
// CHECK:STDOUT:   %G.type.1: type = fn_type @G, @X(%U) [symbolic]
// CHECK:STDOUT:   %G.1: %G.type.1 = struct_value () [symbolic]
// CHECK:STDOUT:   %.1: type = struct_type {} [template]
// CHECK:STDOUT:   %.2: <witness> = complete_type_witness %.1 [template]
// CHECK:STDOUT:   %.3: <specific function> = specific_function %G.1, @G(%U) [symbolic]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT:   %C.type: type = generic_class_type @C [template]
// CHECK:STDOUT:   %C.1: %C.type = struct_value () [template]
// CHECK:STDOUT:   %C.2: type = class_type @C, @C(%T) [symbolic]
// CHECK:STDOUT:   %X.3: type = class_type @X, @X(%T) [symbolic]
// CHECK:STDOUT:   %G.type.2: type = fn_type @G, @X(%T) [symbolic]
// CHECK:STDOUT:   %G.2: %G.type.2 = struct_value () [symbolic]
// CHECK:STDOUT:   %.5: type = unbound_element_type %C.2, %X.3 [symbolic]
// CHECK:STDOUT:   %.6: type = struct_type {.base: %X.3} [symbolic]
// CHECK:STDOUT:   %.7: <witness> = complete_type_witness %.6 [symbolic]
// CHECK:STDOUT:   %F.type: type = fn_type @F [template]
// CHECK:STDOUT:   %F: %F.type = struct_value () [template]
// CHECK:STDOUT:   %.8: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
// CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
// CHECK:STDOUT:   %i32: type = int_type signed, %.8 [template]
// CHECK:STDOUT:   %C.3: type = class_type @C, @C(%i32) [template]
// CHECK:STDOUT:   %X.4: type = class_type @X, @X(%i32) [template]
// CHECK:STDOUT:   %.9: type = unbound_element_type %C.3, %X.4 [template]
// CHECK:STDOUT:   %.10: type = struct_type {.base: %X.4} [template]
// CHECK:STDOUT:   %.11: <witness> = complete_type_witness %.10 [template]
// CHECK:STDOUT:   %G.type.3: type = fn_type @G, @X(%i32) [template]
// CHECK:STDOUT:   %G.3: %G.type.3 = struct_value () [template]
// CHECK:STDOUT:   %.14: <specific function> = specific_function %G.3, @G(%i32) [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT:     .Int = %import_ref
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [template] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .X = %X.decl
// CHECK:STDOUT:     .C = %C.decl
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %X.decl: %X.type = class_decl @X [template = constants.%X.1] {
// CHECK:STDOUT:     %U.patt.loc4_14.1: type = symbolic_binding_pattern U, 0 [symbolic = %U.patt.loc4_14.2 (constants.%U.patt)]
// CHECK:STDOUT:     %U.param_patt: type = value_param_pattern %U.patt.loc4_14.1, runtime_param<invalid> [symbolic = %U.patt.loc4_14.2 (constants.%U.patt)]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %U.param: type = value_param runtime_param<invalid>
// CHECK:STDOUT:     %U.loc4_14.1: type = bind_symbolic_name U, 0, %U.param [symbolic = %U.loc4_14.2 (constants.%U)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %C.decl: %C.type = class_decl @C [template = constants.%C.1] {
// CHECK:STDOUT:     %T.patt.loc8_9.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc8_9.2 (constants.%T.patt)]
// CHECK:STDOUT:     %T.param_patt: type = value_param_pattern %T.patt.loc8_9.1, runtime_param<invalid> [symbolic = %T.patt.loc8_9.2 (constants.%T.patt)]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %T.param: type = value_param runtime_param<invalid>
// CHECK:STDOUT:     %T.loc8_9.1: type = bind_symbolic_name T, 0, %T.param [symbolic = %T.loc8_9.2 (constants.%T)]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @X(%U.loc4_14.1: type) {
// CHECK:STDOUT:   %U.loc4_14.2: type = bind_symbolic_name U, 0 [symbolic = %U.loc4_14.2 (constants.%U)]
// CHECK:STDOUT:   %U.patt.loc4_14.2: type = symbolic_binding_pattern U, 0 [symbolic = %U.patt.loc4_14.2 (constants.%U.patt)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type: type = fn_type @G, @X(%U.loc4_14.2) [symbolic = %G.type (constants.%G.type.1)]
// CHECK:STDOUT:   %G: @X.%G.type (%G.type.1) = struct_value () [symbolic = %G (constants.%G.1)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %G.decl: @X.%G.type (%G.type.1) = fn_decl @G [symbolic = @X.%G (constants.%G.1)] {
// CHECK:STDOUT:       %return.patt: @G.%U (%U) = return_slot_pattern
// CHECK:STDOUT:       %return.param_patt: @G.%U (%U) = out_param_pattern %return.patt, runtime_param0
// CHECK:STDOUT:     } {
// CHECK:STDOUT:       %U.ref: type = name_ref U, @X.%U.loc4_14.1 [symbolic = %U (constants.%U)]
// CHECK:STDOUT:       %return.param: ref @G.%U (%U) = out_param runtime_param0
// CHECK:STDOUT:       %return: ref @G.%U (%U) = return_slot %return.param
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %.loc6: <witness> = complete_type_witness %.1 [template = constants.%.2]
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%X.2
// CHECK:STDOUT:     .G = %G.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @C(%T.loc8_9.1: type) {
// CHECK:STDOUT:   %T.loc8_9.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_9.2 (constants.%T)]
// CHECK:STDOUT:   %T.patt.loc8_9.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc8_9.2 (constants.%T.patt)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %X.loc9_17.2: type = class_type @X, @X(%T.loc8_9.2) [symbolic = %X.loc9_17.2 (constants.%X.3)]
// CHECK:STDOUT:   %C: type = class_type @C, @C(%T.loc8_9.2) [symbolic = %C (constants.%C.2)]
// CHECK:STDOUT:   %.loc9_20.2: type = unbound_element_type @C.%C (%C.2), @C.%X.loc9_17.2 (%X.3) [symbolic = %.loc9_20.2 (constants.%.5)]
// CHECK:STDOUT:   %.loc10_1.2: type = struct_type {.base: @C.%X.loc9_17.2 (%X.3)} [symbolic = %.loc10_1.2 (constants.%.6)]
// CHECK:STDOUT:   %.loc10_1.3: <witness> = complete_type_witness @C.%.loc10_1.2 (%.6) [symbolic = %.loc10_1.3 (constants.%.7)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:     %X.ref: %X.type = name_ref X, file.%X.decl [template = constants.%X.1]
// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc8_9.1 [symbolic = %T.loc8_9.2 (constants.%T)]
// CHECK:STDOUT:     %X.loc9_17.1: type = class_type @X, @X(constants.%T) [symbolic = %X.loc9_17.2 (constants.%X.3)]
// CHECK:STDOUT:     %.loc9_20.1: @C.%.loc9_20.2 (%.5) = base_decl %X.3, element0 [template]
// CHECK:STDOUT:     %.loc10_1.1: <witness> = complete_type_witness %.6 [symbolic = %.loc10_1.3 (constants.%.7)]
// CHECK:STDOUT:
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = constants.%C.2
// CHECK:STDOUT:     .base = %.loc9_20.1
// CHECK:STDOUT:     extend %X.loc9_17.1
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @G(@X.%U.loc4_14.1: type) {
// CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type: type = fn_type @G, @X(%U) [symbolic = %G.type (constants.%G.type.1)]
// CHECK:STDOUT:   %G: @G.%G.type (%G.type.1) = struct_value () [symbolic = %G (constants.%G.1)]
// CHECK:STDOUT:   %.loc5_24.3: <specific function> = specific_function %G, @G(%U) [symbolic = %.loc5_24.3 (constants.%.3)]
// CHECK:STDOUT:
// CHECK:STDOUT:   fn() -> @G.%U (%U) {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     %.loc5_24.1: @G.%G.type (%G.type.1) = specific_constant @X.%G.decl, @X(constants.%U) [symbolic = %G (constants.%G.1)]
// CHECK:STDOUT:     %G.ref: @G.%G.type (%G.type.1) = name_ref G, %.loc5_24.1 [symbolic = %G (constants.%G.1)]
// CHECK:STDOUT:     %.loc5_24.2: <specific function> = specific_function %G.ref, @G(constants.%U) [symbolic = %.loc5_24.3 (constants.%.3)]
// CHECK:STDOUT:     %G.call: init @G.%U (%U) = call %.loc5_24.2()
// CHECK:STDOUT:     %.loc5_27.1: @G.%U (%U) = value_of_initializer %G.call
// CHECK:STDOUT:     %.loc5_27.2: @G.%U (%U) = converted %G.call, %.loc5_27.1
// CHECK:STDOUT:     return %.loc5_27.2
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc13_10.1: Core.IntLiteral = int_value 32 [template = constants.%.8]
// CHECK:STDOUT:   %int.make_type_signed.loc13_10: init type = call constants.%Int(%.loc13_10.1) [template = constants.%i32]
// CHECK:STDOUT:   %.loc13_10.2: type = value_of_initializer %int.make_type_signed.loc13_10 [template = constants.%i32]
// CHECK:STDOUT:   %.loc13_10.3: type = converted %int.make_type_signed.loc13_10, %.loc13_10.2 [template = constants.%i32]
// CHECK:STDOUT:   %C.ref: %C.type = name_ref C, file.%C.decl [template = constants.%C.1]
// CHECK:STDOUT:   %.loc13_18: Core.IntLiteral = int_value 32 [template = constants.%.8]
// CHECK:STDOUT:   %int.make_type_signed.loc13_18: init type = call constants.%Int(%.loc13_18) [template = constants.%i32]
// CHECK:STDOUT:   %.loc13_17.1: type = value_of_initializer %int.make_type_signed.loc13_18 [template = constants.%i32]
// CHECK:STDOUT:   %.loc13_17.2: type = converted %int.make_type_signed.loc13_18, %.loc13_17.1 [template = constants.%i32]
// CHECK:STDOUT:   %C: type = class_type @C, @C(constants.%i32) [template = constants.%C.3]
// CHECK:STDOUT:   %.loc13_22.1: %G.type.3 = specific_constant @X.%G.decl, @X(constants.%i32) [template = constants.%G.3]
// CHECK:STDOUT:   %G.ref: %G.type.3 = name_ref G, %.loc13_22.1 [template = constants.%G.3]
// CHECK:STDOUT:   %.loc13_22.2: <specific function> = specific_function %G.ref, @G(constants.%i32) [template = constants.%.14]
// CHECK:STDOUT:   %G.call: init %i32 = call %.loc13_22.2()
// CHECK:STDOUT:   %.loc13_26.1: %i32 = value_of_initializer %G.call
// CHECK:STDOUT:   %.loc13_26.2: %i32 = converted %G.call, %.loc13_26.1
// CHECK:STDOUT:   %i: %i32 = bind_name i, %.loc13_26.2
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%U) {
// CHECK:STDOUT:   %U.loc4_14.2 => constants.%U
// CHECK:STDOUT:   %U.patt.loc4_14.2 => constants.%U
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.1
// CHECK:STDOUT:   %G => constants.%G.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(constants.%U) {
// CHECK:STDOUT:   %U => constants.%U
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.1
// CHECK:STDOUT:   %G => constants.%G.1
// CHECK:STDOUT:   %.loc5_24.3 => constants.%.3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(%U.loc4_14.2) {
// CHECK:STDOUT:   %U.loc4_14.2 => constants.%U
// CHECK:STDOUT:   %U.patt.loc4_14.2 => constants.%U
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(@G.%U) {
// CHECK:STDOUT:   %U.loc4_14.2 => constants.%U
// CHECK:STDOUT:   %U.patt.loc4_14.2 => constants.%U
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(%U) {
// CHECK:STDOUT:   %U => constants.%U
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%T) {
// CHECK:STDOUT:   %T.loc8_9.2 => constants.%T
// CHECK:STDOUT:   %T.patt.loc8_9.2 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%T) {
// CHECK:STDOUT:   %U.loc4_14.2 => constants.%T
// CHECK:STDOUT:   %U.patt.loc4_14.2 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.2
// CHECK:STDOUT:   %G => constants.%G.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(@C.%T.loc8_9.2) {
// CHECK:STDOUT:   %U.loc4_14.2 => constants.%T
// CHECK:STDOUT:   %U.patt.loc4_14.2 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(%T.loc8_9.2) {
// CHECK:STDOUT:   %T.loc8_9.2 => constants.%T
// CHECK:STDOUT:   %T.patt.loc8_9.2 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%i32) {
// CHECK:STDOUT:   %T.loc8_9.2 => constants.%i32
// CHECK:STDOUT:   %T.patt.loc8_9.2 => constants.%i32
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %X.loc9_17.2 => constants.%X.4
// CHECK:STDOUT:   %C => constants.%C.3
// CHECK:STDOUT:   %.loc9_20.2 => constants.%.9
// CHECK:STDOUT:   %.loc10_1.2 => constants.%.10
// CHECK:STDOUT:   %.loc10_1.3 => constants.%.11
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%i32) {
// CHECK:STDOUT:   %U.loc4_14.2 => constants.%i32
// CHECK:STDOUT:   %U.patt.loc4_14.2 => constants.%i32
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.3
// CHECK:STDOUT:   %G => constants.%G.3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(constants.%i32) {
// CHECK:STDOUT:   %U => constants.%i32
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.3
// CHECK:STDOUT:   %G => constants.%G.3
// CHECK:STDOUT:   %.loc5_24.3 => constants.%.14
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_todo_import_extend_generic_symbolic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %H.type: type = fn_type @H [template]
// CHECK:STDOUT:   %H: %H.type = struct_value () [template]
// CHECK:STDOUT:   %.1: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
// CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
// CHECK:STDOUT:   %i32: type = int_type signed, %.1 [template]
// CHECK:STDOUT:   %C.type: type = generic_class_type @C [template]
// CHECK:STDOUT:   %C.1: %C.type = struct_value () [template]
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
// CHECK:STDOUT:   %U.patt: type = symbolic_binding_pattern U, 0 [symbolic]
// CHECK:STDOUT:   %X.3: type = class_type @X, @X(%T) [symbolic]
// CHECK:STDOUT:   %C.2: type = class_type @C, @C(%T) [symbolic]
// CHECK:STDOUT:   %.4: type = unbound_element_type %C.2, %X.3 [symbolic]
// CHECK:STDOUT:   %.5: type = struct_type {.base: %X.3} [symbolic]
// CHECK:STDOUT:   %.6: <witness> = complete_type_witness %.5 [symbolic]
// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT:   %G.type.1: type = fn_type @G, @X(%U) [symbolic]
// CHECK:STDOUT:   %G.1: %G.type.1 = struct_value () [symbolic]
// CHECK:STDOUT:   %.7: <specific function> = specific_function %G.1, @G(%U) [symbolic]
// CHECK:STDOUT:   %G.type.2: type = fn_type @G, @X(%T) [symbolic]
// CHECK:STDOUT:   %G.2: %G.type.2 = struct_value () [symbolic]
// CHECK:STDOUT:   %C.3: type = class_type @C, @C(%i32) [template]
// CHECK:STDOUT:   %X.4: type = class_type @X, @X(%i32) [template]
// CHECK:STDOUT:   %.8: type = unbound_element_type %C.3, %X.4 [template]
// CHECK:STDOUT:   %.9: type = struct_type {.base: %X.4} [template]
// CHECK:STDOUT:   %.10: <witness> = complete_type_witness %.9 [template]
// CHECK:STDOUT:   %.14: <specific function> = specific_function %G.2, @G(%T) [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %import_ref.1 = import_ref Main//extend_generic_symbolic_base, inst+9, unloaded
// CHECK:STDOUT:   %import_ref.2: %C.type = import_ref Main//extend_generic_symbolic_base, inst+47, loaded [template = constants.%C.1]
// CHECK:STDOUT:   %import_ref.3 = import_ref Main//extend_generic_symbolic_base, inst+70, unloaded
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT:     .Int = %import_ref.4
// CHECK:STDOUT:     .ImplicitAs = %import_ref.9
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %import_ref.5 = import_ref Main//extend_generic_symbolic_base, inst+15, unloaded
// CHECK:STDOUT:   %import_ref.6: @X.%G.type (%G.type.1) = import_ref Main//extend_generic_symbolic_base, inst+21, loaded [symbolic = @X.%G (constants.%G.1)]
// CHECK:STDOUT:   %import_ref.7 = import_ref Main//extend_generic_symbolic_base, inst+52, unloaded
// CHECK:STDOUT:   %import_ref.8 = import_ref Main//extend_generic_symbolic_base, inst+61, unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [template] {
// CHECK:STDOUT:     .X = imports.%import_ref.1
// CHECK:STDOUT:     .C = imports.%import_ref.2
// CHECK:STDOUT:     .F = imports.%import_ref.3
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .H = %H.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %default.import = import <invalid>
// CHECK:STDOUT:   %H.decl: %H.type = fn_decl @H [template = constants.%H] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @C(constants.%T: type) {
// CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %X: type = class_type @X, @X(%T) [symbolic = %X (constants.%X.3)]
// CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.2)]
// CHECK:STDOUT:   %.1: type = unbound_element_type @C.%C (%C.2), @C.%X (%X.3) [symbolic = %.1 (constants.%.4)]
// CHECK:STDOUT:   %.2: type = struct_type {.base: @C.%X (%X.3)} [symbolic = %.2 (constants.%.5)]
// CHECK:STDOUT:   %.3: <witness> = complete_type_witness @C.%.2 (%.5) [symbolic = %.3 (constants.%.6)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = imports.%import_ref.7
// CHECK:STDOUT:     .base = imports.%import_ref.8
// CHECK:STDOUT:     extend constants.%X.3
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @X(constants.%U: type) {
// CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
// CHECK:STDOUT:   %U.patt: type = symbolic_binding_pattern U, 0 [symbolic = %U.patt (constants.%U.patt)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type: type = fn_type @G, @X(%U) [symbolic = %G.type (constants.%G.type.1)]
// CHECK:STDOUT:   %G: @X.%G.type (%G.type.1) = struct_value () [symbolic = %G (constants.%G.1)]
// CHECK:STDOUT:
// CHECK:STDOUT:   class {
// CHECK:STDOUT:   !members:
// CHECK:STDOUT:     .Self = imports.%import_ref.5
// CHECK:STDOUT:     .G = imports.%import_ref.6
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @H() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc13_10.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT:   %int.make_type_signed.loc13_10: init type = call constants.%Int(%.loc13_10.1) [template = constants.%i32]
// CHECK:STDOUT:   %.loc13_10.2: type = value_of_initializer %int.make_type_signed.loc13_10 [template = constants.%i32]
// CHECK:STDOUT:   %.loc13_10.3: type = converted %int.make_type_signed.loc13_10, %.loc13_10.2 [template = constants.%i32]
// CHECK:STDOUT:   %C.ref: %C.type = name_ref C, imports.%import_ref.2 [template = constants.%C.1]
// CHECK:STDOUT:   %.loc13_18: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT:   %int.make_type_signed.loc13_18: init type = call constants.%Int(%.loc13_18) [template = constants.%i32]
// CHECK:STDOUT:   %.loc13_17.1: type = value_of_initializer %int.make_type_signed.loc13_18 [template = constants.%i32]
// CHECK:STDOUT:   %.loc13_17.2: type = converted %int.make_type_signed.loc13_18, %.loc13_17.1 [template = constants.%i32]
// CHECK:STDOUT:   %C: type = class_type @C, @C(constants.%i32) [template = constants.%C.3]
// CHECK:STDOUT:   %.loc13_22.1: %G.type.2 = specific_constant imports.%import_ref.6, @X(constants.%T) [symbolic = constants.%G.2]
// CHECK:STDOUT:   %G.ref: %G.type.2 = name_ref G, %.loc13_22.1 [symbolic = constants.%G.2]
// CHECK:STDOUT:   %.loc13_22.2: <specific function> = specific_function %G.ref, @G(constants.%T) [symbolic = constants.%.14]
// CHECK:STDOUT:   %G.call: init %T = call %.loc13_22.2()
// CHECK:STDOUT:   %.loc13_26: %i32 = converted %G.call, <error> [template = <error>]
// CHECK:STDOUT:   %j: %i32 = bind_name j, <error>
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @G(constants.%U: type) {
// CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type: type = fn_type @G, @X(%U) [symbolic = %G.type (constants.%G.type.1)]
// CHECK:STDOUT:   %G: @G.%G.type (%G.type.1) = struct_value () [symbolic = %G (constants.%G.1)]
// CHECK:STDOUT:   %.1: <specific function> = specific_function %G, @G(%U) [symbolic = %.1 (constants.%.7)]
// CHECK:STDOUT:
// CHECK:STDOUT:   fn() -> @G.%U (%U);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%U) {
// CHECK:STDOUT:   %U => constants.%U
// CHECK:STDOUT:   %U.patt => constants.%U
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.1
// CHECK:STDOUT:   %G => constants.%G.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%T) {
// CHECK:STDOUT:   %U => constants.%T
// CHECK:STDOUT:   %U.patt => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.2
// CHECK:STDOUT:   %G => constants.%G.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T.patt => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(%U) {
// CHECK:STDOUT:   %U => constants.%U
// CHECK:STDOUT:   %U.patt => constants.%U
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(@C.%T) {
// CHECK:STDOUT:   %U => constants.%T
// CHECK:STDOUT:   %U.patt => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(%T) {
// CHECK:STDOUT:   %T => constants.%T
// CHECK:STDOUT:   %T.patt => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(constants.%U) {
// CHECK:STDOUT:   %U => constants.%U
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.1
// CHECK:STDOUT:   %G => constants.%G.1
// CHECK:STDOUT:   %.1 => constants.%.7
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(@G.%U) {
// CHECK:STDOUT:   %U => constants.%U
// CHECK:STDOUT:   %U.patt => constants.%U
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(%U) {
// CHECK:STDOUT:   %U => constants.%U
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%i32) {
// CHECK:STDOUT:   %T => constants.%i32
// CHECK:STDOUT:   %T.patt => constants.%i32
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %X => constants.%X.4
// CHECK:STDOUT:   %C => constants.%C.3
// CHECK:STDOUT:   %.1 => constants.%.8
// CHECK:STDOUT:   %.2 => constants.%.9
// CHECK:STDOUT:   %.3 => constants.%.10
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%i32) {
// CHECK:STDOUT:   %U => constants.%i32
// CHECK:STDOUT:   %U.patt => constants.%i32
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(constants.%T) {
// CHECK:STDOUT:   %U => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %G.type => constants.%G.type.2
// CHECK:STDOUT:   %G => constants.%G.2
// CHECK:STDOUT:   %.1 => constants.%.14
// CHECK:STDOUT: }
// CHECK:STDOUT: