carbon-lang/toolchain/check/testdata/generic/template/convert.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/generic/template/convert.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/generic/template/convert.carbon

// --- convert.carbon

library "[[@TEST_NAME]]";

fn F[template T:! type](x: T) -> i32 {
  let n: i32 = x;
  return n;
}

fn Test1(n: i32) -> i32 {
  return F(n);
}

class C {
  var n: i32;
  impl as Core.ImplicitAs(i32) {
    fn Convert[self: Self]() -> i32 { return self.n; }
  }
}

fn Test2(c: C) -> i32 {
  return F(c);
}

// --- fail_cannot_convert.carbon

library "[[@TEST_NAME]]";

fn F[template T:! type](x: T) -> i32 {
  // CHECK:STDERR: fail_cannot_convert.carbon:[[@LINE+6]]:16: error: cannot implicitly convert expression of type `D` to `i32` [ConversionFailure]
  // CHECK:STDERR:   let n: i32 = x;
  // CHECK:STDERR:                ^
  // CHECK:STDERR: fail_cannot_convert.carbon:[[@LINE+3]]:16: note: type `D` does not implement interface `Core.ImplicitAs(i32)` [MissingImplInMemberAccessNote]
  // CHECK:STDERR:   let n: i32 = x;
  // CHECK:STDERR:                ^
  let n: i32 = x;
  return n;
}

class D {}

fn Test(d: D) -> i32 {
  // CHECK:STDERR: fail_cannot_convert.carbon:[[@LINE+4]]:10: note: in `F(D)` used here [ResolvingSpecificHere]
  // CHECK:STDERR:   return F(d);
  // CHECK:STDERR:          ^
  // CHECK:STDERR:
  return F(d);
}

// CHECK:STDOUT: --- convert.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %type: type = facet_type <type> [concrete]
// CHECK:STDOUT:   %.Self: %type = symbolic_binding .Self [symbolic_self]
// CHECK:STDOUT:   %T.67db0b.1: type = symbolic_binding T, 0, template [template]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %pattern_type.51d1c4.1: type = pattern_type %T.67db0b.1 [template]
// 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:   %N: Core.IntLiteral = symbolic_binding N, 0 [symbolic]
// CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT:   %.4d5: form = init_form %i32, call_param1 [concrete]
// CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT:   %i32.builtin: type = int_type signed, %int_32 [concrete]
// CHECK:STDOUT:   %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
// CHECK:STDOUT:   %require_complete.944: <witness> = require_complete_type %T.67db0b.1 [template]
// CHECK:STDOUT:   %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT:   %Copy.Op.type: type = fn_type @Copy.Op [concrete]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.type.824: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.9b9: %Int.as.Copy.impl.Op.type.824 = struct_value () [symbolic]
// CHECK:STDOUT:   %Copy.impl_witness.f17: <witness> = impl_witness imports.%Copy.impl_witness_table.e76, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.type.546: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.664: %Int.as.Copy.impl.Op.type.546 = struct_value () [concrete]
// CHECK:STDOUT:   %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.f17) [concrete]
// CHECK:STDOUT:   %.f79: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet [concrete]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.664, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT:   %Test1.type: type = fn_type @Test1 [concrete]
// CHECK:STDOUT:   %Test1: %Test1.type = struct_value () [concrete]
// CHECK:STDOUT:   %F.specific_fn.d18: <specific function> = specific_function %F, @F(%i32) [concrete]
// CHECK:STDOUT:   %C: type = class_type @C [concrete]
// CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %i32 [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.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
// CHECK:STDOUT:   %ImplicitAs.impl_witness.892: <witness> = impl_witness @C.as.ImplicitAs.impl.%ImplicitAs.impl_witness_table [concrete]
// CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
// CHECK:STDOUT:   %pattern_type.7c7: type = pattern_type %C [concrete]
// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type: type = fn_type @C.as.ImplicitAs.impl.Convert [concrete]
// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert: %C.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value %C, (%ImplicitAs.impl_witness.892) [concrete]
// CHECK:STDOUT:   %struct_type.n: type = struct_type {.n: %i32} [concrete]
// CHECK:STDOUT:   %complete_type.54b: <witness> = complete_type_witness %struct_type.n [concrete]
// CHECK:STDOUT:   %Test2.type: type = fn_type @Test2 [concrete]
// CHECK:STDOUT:   %Test2: %Test2.type = struct_value () [concrete]
// CHECK:STDOUT:   %F.specific_fn.540: <specific function> = specific_function %F, @F(%C) [concrete]
// CHECK:STDOUT:   %inst.as_compatible.db5: <instruction> = inst_value [concrete] {
// CHECK:STDOUT:     %.9b1: %i32 = as_compatible @F.%x.ref
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %inst.splice_block.e80: <instruction> = inst_value [concrete] {
// CHECK:STDOUT:     %.457: %i32 = splice_block %.9b1 {}
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %inst.as_compatible.97f: <instruction> = inst_value [concrete] {
// CHECK:STDOUT:     %.b3d: %C = as_compatible @F.%x.ref
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %.13d: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
// CHECK:STDOUT:   %inst.splice_block.0b4: <instruction> = inst_value [concrete] {
// CHECK:STDOUT:     %.e50: %i32 = splice_block %.330 {
// CHECK:STDOUT:       %impl.elem0.247: %.13d = impl_witness_access %ImplicitAs.impl_witness.892, element0 [concrete = %C.as.ImplicitAs.impl.Convert]
// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %.b3d, %impl.elem0.247
// CHECK:STDOUT:       %C.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method(%.b3d)
// CHECK:STDOUT:       %.d7e: %i32 = value_of_initializer %C.as.ImplicitAs.impl.Convert.call
// CHECK:STDOUT:       %.330: %i32 = converted %.b3d, %.d7e
// CHECK:STDOUT:     }
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Int = %Core.Int
// CHECK:STDOUT:     .Copy = %Core.Copy
// 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.Copy: type = import_ref Core//prelude/parts/copy, Copy, loaded [concrete = constants.%Copy.type]
// CHECK:STDOUT:   %Core.import_ref.18d: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.824) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.9b9)]
// CHECK:STDOUT:   %Copy.impl_witness_table.e76 = impl_witness_table (%Core.import_ref.18d), @Int.as.Copy.impl [concrete]
// 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:     .F = %F.decl
// CHECK:STDOUT:     .Test1 = %Test1.decl
// CHECK:STDOUT:     .C = %C.decl
// CHECK:STDOUT:     .Test2 = %Test2.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0, template [concrete]
// CHECK:STDOUT:     %x.patt: @F.%pattern_type (%pattern_type.51d1c4.1) = value_binding_pattern x [concrete]
// CHECK:STDOUT:     %x.param_patt: @F.%pattern_type (%pattern_type.51d1c4.1) = value_param_pattern %x.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %int_32.loc4: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:     %i32.loc4: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:     %.loc4: form = init_form %i32.loc4, call_param1 [concrete = constants.%.4d5]
// CHECK:STDOUT:     %.Self: %type = symbolic_binding .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_15.2: type = symbolic_binding T, 0, template [template = %T.loc4_15.1 (constants.%T.67db0b.1)]
// CHECK:STDOUT:     %x.param: @F.%T.loc4_15.1 (%T.67db0b.1) = value_param call_param0
// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc4_15.2 [template = %T.loc4_15.1 (constants.%T.67db0b.1)]
// CHECK:STDOUT:     %x: @F.%T.loc4_15.1 (%T.67db0b.1) = value_binding x, %x.param
// CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
// CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Test1.decl: %Test1.type = fn_decl @Test1 [concrete = constants.%Test1] {
// CHECK:STDOUT:     %n.patt: %pattern_type.7ce = value_binding_pattern n [concrete]
// CHECK:STDOUT:     %n.param_patt: %pattern_type.7ce = value_param_pattern %n.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %int_32.loc9_21: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:     %i32.loc9_21: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:     %.loc9_21: form = init_form %i32.loc9_21, call_param1 [concrete = constants.%.4d5]
// CHECK:STDOUT:     %n.param: %i32 = value_param call_param0
// CHECK:STDOUT:     %.loc9_13: type = splice_block %i32.loc9_13 [concrete = constants.%i32] {
// CHECK:STDOUT:       %int_32.loc9_13: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:       %i32.loc9_13: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %n: %i32 = value_binding n, %n.param
// CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
// CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT:   %Test2.decl: %Test2.type = fn_decl @Test2 [concrete = constants.%Test2] {
// CHECK:STDOUT:     %c.patt: %pattern_type.7c7 = value_binding_pattern c [concrete]
// CHECK:STDOUT:     %c.param_patt: %pattern_type.7c7 = value_param_pattern %c.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// 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:     %.loc20: form = init_form %i32, call_param1 [concrete = constants.%.4d5]
// CHECK:STDOUT:     %c.param: %C = value_param call_param0
// CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %c: %C = value_binding c, %c.param
// CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
// CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.ImplicitAs.impl: %Self.ref as %ImplicitAs.type {
// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type = fn_decl @C.as.ImplicitAs.impl.Convert [concrete = constants.%C.as.ImplicitAs.impl.Convert] {
// CHECK:STDOUT:     %self.patt: %pattern_type.7c7 = value_binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.7c7 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// 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:     %.loc16_33: form = init_form %i32, call_param1 [concrete = constants.%.4d5]
// 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 = value_binding self, %self.param
// CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
// CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl [concrete]
// CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness %ImplicitAs.impl_witness_table [concrete = constants.%ImplicitAs.impl_witness.892]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Convert = %C.as.ImplicitAs.impl.Convert.decl
// CHECK:STDOUT:   witness = %ImplicitAs.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// 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:   %.loc14: %C.elem = field_decl n, element0 [concrete]
// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl [concrete] {} {
// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
// 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:     %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:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%i32)> [concrete = constants.%ImplicitAs.type.e8c]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.n [concrete = constants.%complete_type.54b]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%C
// CHECK:STDOUT:   .n = %.loc14
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @F(%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T.loc4_15.1: type = symbolic_binding T, 0, template [template = %T.loc4_15.1 (constants.%T.67db0b.1)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.loc4_15.1 [template = %pattern_type (constants.%pattern_type.51d1c4.1)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.loc4_15.1 [template = %require_complete (constants.%require_complete.944)]
// CHECK:STDOUT:   %.loc5_16.3: <instruction> = refine_type_action %x.ref, %T.loc4_15.1 [template]
// CHECK:STDOUT:   %.loc5_16.4: <instruction> = convert_to_value_action %.loc5_16.1, constants.%i32 [template]
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%x.param: @F.%T.loc4_15.1 (%T.67db0b.1)) -> %i32 {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     name_binding_decl {
// CHECK:STDOUT:       %n.patt: %pattern_type.7ce = value_binding_pattern n [concrete]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %x.ref: @F.%T.loc4_15.1 (%T.67db0b.1) = name_ref x, %x
// CHECK:STDOUT:     %.loc5_10: type = splice_block %i32.loc5 [concrete = constants.%i32] {
// 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:     }
// CHECK:STDOUT:     %.loc5_16.1: @F.%T.loc4_15.1 (%T.67db0b.1) = splice_inst %.loc5_16.3
// CHECK:STDOUT:     %.loc5_16.2: %i32 = splice_inst %.loc5_16.4
// CHECK:STDOUT:     %n: %i32 = value_binding n, %.loc5_16.2
// CHECK:STDOUT:     %n.ref: %i32 = name_ref n, %n
// CHECK:STDOUT:     %impl.elem0: %.f79 = impl_witness_access constants.%Copy.impl_witness.f17, element0 [concrete = constants.%Int.as.Copy.impl.Op.664]
// CHECK:STDOUT:     %bound_method.loc6_10.1: <bound method> = bound_method %n.ref, %impl.elem0
// CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT:     %bound_method.loc6_10.2: <bound method> = bound_method %n.ref, %specific_fn
// CHECK:STDOUT:     %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc6_10.2(%n.ref)
// CHECK:STDOUT:     return %Int.as.Copy.impl.Op.call to %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Test1(%n.param: %i32) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
// CHECK:STDOUT:   %n.ref: %i32 = name_ref n, %n
// CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F.ref, @F(constants.%i32) [concrete = constants.%F.specific_fn.d18]
// CHECK:STDOUT:   %F.call: init %i32 = call %F.specific_fn(%n.ref)
// CHECK:STDOUT:   return %F.call to %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C.as.ImplicitAs.impl.Convert(%self.param: %C) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %self.ref: %C = name_ref self, %self
// CHECK:STDOUT:   %n.ref: %C.elem = name_ref n, @C.%.loc14 [concrete = @C.%.loc14]
// CHECK:STDOUT:   %.loc16_50.1: ref %i32 = class_element_access %self.ref, element0
// CHECK:STDOUT:   %.loc16_50.2: %i32 = acquire_value %.loc16_50.1
// CHECK:STDOUT:   %impl.elem0: %.f79 = impl_witness_access constants.%Copy.impl_witness.f17, element0 [concrete = constants.%Int.as.Copy.impl.Op.664]
// CHECK:STDOUT:   %bound_method.loc16_50.1: <bound method> = bound_method %.loc16_50.2, %impl.elem0
// CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT:   %bound_method.loc16_50.2: <bound method> = bound_method %.loc16_50.2, %specific_fn
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc16_50.2(%.loc16_50.2)
// CHECK:STDOUT:   return %Int.as.Copy.impl.Op.call to %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Test2(%c.param: %C) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
// CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
// CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F.ref, @F(constants.%C) [concrete = constants.%F.specific_fn.540]
// CHECK:STDOUT:   %F.call: init %i32 = call %F.specific_fn(%c.ref)
// CHECK:STDOUT:   return %F.call to %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F(constants.%T.67db0b.1) {
// CHECK:STDOUT:   %T.loc4_15.1 => constants.%T.67db0b.1
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.51d1c4.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F(constants.%i32) {
// CHECK:STDOUT:   %T.loc4_15.1 => constants.%i32
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7ce
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%complete_type.f8a
// CHECK:STDOUT:   %.loc5_16.3 => constants.%inst.as_compatible.db5
// CHECK:STDOUT:   %.loc5_16.4 => constants.%inst.splice_block.e80
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F(constants.%C) {
// CHECK:STDOUT:   %T.loc4_15.1 => constants.%C
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7c7
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%complete_type.54b
// CHECK:STDOUT:   %.loc5_16.3 => constants.%inst.as_compatible.97f
// CHECK:STDOUT:   %.loc5_16.4 => constants.%inst.splice_block.0b4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_cannot_convert.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %type: type = facet_type <type> [concrete]
// CHECK:STDOUT:   %.Self: %type = symbolic_binding .Self [symbolic_self]
// CHECK:STDOUT:   %T.67db0b.1: type = symbolic_binding T, 0, template [template]
// CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT:   %pattern_type.51d1c4.1: type = pattern_type %T.67db0b.1 [template]
// 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:   %N: Core.IntLiteral = symbolic_binding N, 0 [symbolic]
// CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT:   %.4d5: form = init_form %i32, call_param1 [concrete]
// CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT:   %require_complete.944: <witness> = require_complete_type %T.67db0b.1 [template]
// CHECK:STDOUT:   %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT:   %Copy.Op.type: type = fn_type @Copy.Op [concrete]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.type.824: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.9b9: %Int.as.Copy.impl.Op.type.824 = struct_value () [symbolic]
// CHECK:STDOUT:   %Copy.impl_witness.f17: <witness> = impl_witness imports.%Copy.impl_witness_table.e76, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.type.546: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.664: %Int.as.Copy.impl.Op.type.546 = struct_value () [concrete]
// CHECK:STDOUT:   %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.f17) [concrete]
// CHECK:STDOUT:   %.f79: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet [concrete]
// CHECK:STDOUT:   %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.664, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT:   %D: type = class_type @D [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:   %pattern_type.9c8: type = pattern_type %D [concrete]
// CHECK:STDOUT:   %Test.type: type = fn_type @Test [concrete]
// CHECK:STDOUT:   %Test: %Test.type = struct_value () [concrete]
// CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%D) [concrete]
// CHECK:STDOUT:   %inst.as_compatible: <instruction> = inst_value [concrete] {
// CHECK:STDOUT:     %.759: %D = as_compatible @F.%x.ref
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
// CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
// CHECK:STDOUT:   %inst.splice_block: <instruction> = inst_value [concrete] {
// CHECK:STDOUT:     %.e29: <error> = splice_block <error> [concrete = <error>] {
// CHECK:STDOUT:       %.1ae: %i32 = converted %.759, <error> [concrete = <error>]
// CHECK:STDOUT:     }
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Int = %Core.Int
// CHECK:STDOUT:     .Copy = %Core.Copy
// 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.Copy: type = import_ref Core//prelude/parts/copy, Copy, loaded [concrete = constants.%Copy.type]
// CHECK:STDOUT:   %Core.import_ref.18d: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.824) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.9b9)]
// CHECK:STDOUT:   %Copy.impl_witness_table.e76 = impl_witness_table (%Core.import_ref.18d), @Int.as.Copy.impl [concrete]
// 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:     .F = %F.decl
// CHECK:STDOUT:     .D = %D.decl
// CHECK:STDOUT:     .Test = %Test.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0, template [concrete]
// CHECK:STDOUT:     %x.patt: @F.%pattern_type (%pattern_type.51d1c4.1) = value_binding_pattern x [concrete]
// CHECK:STDOUT:     %x.param_patt: @F.%pattern_type (%pattern_type.51d1c4.1) = value_param_pattern %x.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %int_32.loc4: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:     %i32.loc4: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:     %.loc4: form = init_form %i32.loc4, call_param1 [concrete = constants.%.4d5]
// CHECK:STDOUT:     %.Self: %type = symbolic_binding .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT:     %T.loc4_15.2: type = symbolic_binding T, 0, template [template = %T.loc4_15.1 (constants.%T.67db0b.1)]
// CHECK:STDOUT:     %x.param: @F.%T.loc4_15.1 (%T.67db0b.1) = value_param call_param0
// CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc4_15.2 [template = %T.loc4_15.1 (constants.%T.67db0b.1)]
// CHECK:STDOUT:     %x: @F.%T.loc4_15.1 (%T.67db0b.1) = value_binding x, %x.param
// CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
// CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %D.decl: type = class_decl @D [concrete = constants.%D] {} {}
// CHECK:STDOUT:   %Test.decl: %Test.type = fn_decl @Test [concrete = constants.%Test] {
// CHECK:STDOUT:     %d.patt: %pattern_type.9c8 = value_binding_pattern d [concrete]
// CHECK:STDOUT:     %d.param_patt: %pattern_type.9c8 = value_param_pattern %d.patt, call_param0 [concrete]
// CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT:   } {
// 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:     %.loc17: form = init_form %i32, call_param1 [concrete = constants.%.4d5]
// CHECK:STDOUT:     %d.param: %D = value_param call_param0
// CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
// CHECK:STDOUT:     %d: %D = value_binding d, %d.param
// CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
// CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @D {
// 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.%D
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @F(%T.loc4_15.2: type) {
// CHECK:STDOUT:   %T.loc4_15.1: type = symbolic_binding T, 0, template [template = %T.loc4_15.1 (constants.%T.67db0b.1)]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.loc4_15.1 [template = %pattern_type (constants.%pattern_type.51d1c4.1)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.loc4_15.1 [template = %require_complete (constants.%require_complete.944)]
// CHECK:STDOUT:   %.loc11_16.3: <instruction> = refine_type_action %x.ref, %T.loc4_15.1 [template]
// CHECK:STDOUT:   %.loc11_16.4: <instruction> = convert_to_value_action %.loc11_16.1, constants.%i32 [template]
// CHECK:STDOUT:
// CHECK:STDOUT:   fn(%x.param: @F.%T.loc4_15.1 (%T.67db0b.1)) -> %i32 {
// CHECK:STDOUT:   !entry:
// CHECK:STDOUT:     name_binding_decl {
// CHECK:STDOUT:       %n.patt: %pattern_type.7ce = value_binding_pattern n [concrete]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %x.ref: @F.%T.loc4_15.1 (%T.67db0b.1) = name_ref x, %x
// CHECK:STDOUT:     %.loc11_10: type = splice_block %i32.loc11 [concrete = constants.%i32] {
// CHECK:STDOUT:       %int_32.loc11: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT:       %i32.loc11: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %.loc11_16.1: @F.%T.loc4_15.1 (%T.67db0b.1) = splice_inst %.loc11_16.3
// CHECK:STDOUT:     %.loc11_16.2: %i32 = splice_inst %.loc11_16.4
// CHECK:STDOUT:     %n: %i32 = value_binding n, %.loc11_16.2
// CHECK:STDOUT:     %n.ref: %i32 = name_ref n, %n
// CHECK:STDOUT:     %impl.elem0: %.f79 = impl_witness_access constants.%Copy.impl_witness.f17, element0 [concrete = constants.%Int.as.Copy.impl.Op.664]
// CHECK:STDOUT:     %bound_method.loc12_10.1: <bound method> = bound_method %n.ref, %impl.elem0
// CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT:     %bound_method.loc12_10.2: <bound method> = bound_method %n.ref, %specific_fn
// CHECK:STDOUT:     %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc12_10.2(%n.ref)
// CHECK:STDOUT:     return %Int.as.Copy.impl.Op.call to %return.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Test(%d.param: %D) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
// CHECK:STDOUT:   %d.ref: %D = name_ref d, %d
// CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F.ref, @F(constants.%D) [concrete = constants.%F.specific_fn]
// CHECK:STDOUT:   %F.call: init %i32 = call %F.specific_fn(%d.ref)
// CHECK:STDOUT:   return %F.call to %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F(constants.%T.67db0b.1) {
// CHECK:STDOUT:   %T.loc4_15.1 => constants.%T.67db0b.1
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.51d1c4.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F(constants.%D) {
// CHECK:STDOUT:   %T.loc4_15.1 => constants.%D
// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9c8
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:   %require_complete => constants.%complete_type.357
// CHECK:STDOUT:   %.loc11_16.3 => constants.%inst.as_compatible
// CHECK:STDOUT:   %.loc11_16.4 => constants.%inst.splice_block
// CHECK:STDOUT: }
// CHECK:STDOUT: