carbon-lang/toolchain/check/testdata/class/import_access.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/none.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/import_access.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/import_access.carbon

// ============================================================================
// Setup files
// ============================================================================

// --- def.carbon

package Test library "[[@TEST_NAME]]";

private class Def {}

// --- forward_with_def.carbon

package Test library "[[@TEST_NAME]]";

private class ForwardWithDef;

class ForwardWithDef {}

// --- forward.carbon

package Test library "[[@TEST_NAME]]";

private class Forward;

// ============================================================================
// Test files
// ============================================================================

// --- def.impl.carbon

impl package Test library "[[@TEST_NAME]]";

var c: Def = {};

// --- fail_local_def.carbon

package Test library "[[@TEST_NAME]]";

import library "def";

// CHECK:STDERR: fail_local_def.carbon:[[@LINE+4]]:8: error: name `Def` not found [NameNotFound]
// CHECK:STDERR: var c: Def = {};
// CHECK:STDERR:        ^~~
// CHECK:STDERR:
var c: Def = {};

// --- fail_other_def.carbon

package Other library "[[@TEST_NAME]]";

import Test library "def";

// CHECK:STDERR: fail_other_def.carbon:[[@LINE+4]]:8: error: member name `Def` not found in `Test` [MemberNameNotFoundInInstScope]
// CHECK:STDERR: var c: Test.Def = {};
// CHECK:STDERR:        ^~~~~~~~
// CHECK:STDERR:
var c: Test.Def = {};

// --- forward_with_def.impl.carbon

impl package Test library "[[@TEST_NAME]]";

var c: ForwardWithDef = {};

// --- fail_local_forward_with_def.carbon

package Test library "[[@TEST_NAME]]";

import library "forward_with_def";

// CHECK:STDERR: fail_local_forward_with_def.carbon:[[@LINE+4]]:8: error: name `ForwardWithDef` not found [NameNotFound]
// CHECK:STDERR: var c: ForwardWithDef = {};
// CHECK:STDERR:        ^~~~~~~~~~~~~~
// CHECK:STDERR:
var c: ForwardWithDef = {};

// --- fail_other_forward_with_def.carbon

package Other library "[[@TEST_NAME]]";

import Test library "forward_with_def";

// CHECK:STDERR: fail_other_forward_with_def.carbon:[[@LINE+4]]:8: error: member name `ForwardWithDef` not found in `Test` [MemberNameNotFoundInInstScope]
// CHECK:STDERR: var c: Test.ForwardWithDef = {};
// CHECK:STDERR:        ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
var c: Test.ForwardWithDef = {};

// --- forward.impl.carbon

impl package Test library "[[@TEST_NAME]]";

fn F(c: Forward*) {}

class Forward {}

// --- fail_local_forward.carbon

package Test library "[[@TEST_NAME]]";

import library "forward";

// CHECK:STDERR: fail_local_forward.carbon:[[@LINE+4]]:9: error: name `Forward` not found [NameNotFound]
// CHECK:STDERR: fn F(c: Forward*) {}
// CHECK:STDERR:         ^~~~~~~
// CHECK:STDERR:
fn F(c: Forward*) {}

// --- fail_other_forward.carbon

package Other library "[[@TEST_NAME]]";

import Test library "forward";

// CHECK:STDERR: fail_other_forward.carbon:[[@LINE+4]]:9: error: member name `Forward` not found in `Test` [MemberNameNotFoundInInstScope]
// CHECK:STDERR: fn F(c: Test.Forward*) {}
// CHECK:STDERR:         ^~~~~~~~~~~~
// CHECK:STDERR:
fn F(c: Test.Forward*) {}

// --- todo_fail_private_on_redecl.carbon

library "[[@TEST_NAME]]";

private class Redecl;

private class Redecl {}

// CHECK:STDOUT: --- def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Def: type = class_type @Def [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: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Def [private] = %Def.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Def.decl: type = class_decl @Def [concrete = constants.%Def] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Def {
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Def
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- forward_with_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %ForwardWithDef: type = class_type @ForwardWithDef [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: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .ForwardWithDef [private] = %ForwardWithDef.decl.loc4
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %ForwardWithDef.decl.loc4: type = class_decl @ForwardWithDef [concrete = constants.%ForwardWithDef] {} {}
// CHECK:STDOUT:   %ForwardWithDef.decl.loc6: type = class_decl @ForwardWithDef [concrete = constants.%ForwardWithDef] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @ForwardWithDef {
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%ForwardWithDef
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- forward.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Forward: type = class_type @Forward [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Forward [private] = %Forward.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Forward.decl: type = class_decl @Forward [concrete = constants.%Forward] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Forward;
// CHECK:STDOUT:
// CHECK:STDOUT: --- def.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Def: type = class_type @Def [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %Def [concrete]
// CHECK:STDOUT:   %Def.val: %Def = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Test.Def: type = import_ref Test//def, Def, loaded [concrete = constants.%Def]
// CHECK:STDOUT:   %Test.import_ref.8f2: <witness> = import_ref Test//def, loc4_20, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT:   %Test.import_ref.4ce = import_ref Test//def, inst16 [no loc], unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Def [private] = imports.%Test.Def
// CHECK:STDOUT:     .c = %c
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Test.import = import Test
// CHECK:STDOUT:   %default.import = import <none>
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %c.patt: %pattern_type = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.var_patt: %pattern_type = var_pattern %c.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c.var: ref %Def = var %c.var_patt [concrete]
// CHECK:STDOUT:   %Def.ref: type = name_ref Def, imports.%Test.Def [concrete = constants.%Def]
// CHECK:STDOUT:   %c: ref %Def = bind_name c, %c.var [concrete = %c.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Def [from "def.carbon"] {
// CHECK:STDOUT:   complete_type_witness = imports.%Test.import_ref.8f2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%Test.import_ref.4ce
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc4_15.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc4_15.2: init %Def = class_init (), file.%c.var [concrete = constants.%Def.val]
// CHECK:STDOUT:   %.loc4_1: init %Def = converted %.loc4_15.1, %.loc4_15.2 [concrete = constants.%Def.val]
// CHECK:STDOUT:   assign file.%c.var, %.loc4_1
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_local_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Def = <poisoned>
// CHECK:STDOUT:     .c = %c
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %default.import = import <none>
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %c.patt: <error> = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.var_patt: <error> = var_pattern %c.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c.var: ref <error> = var %c.var_patt [concrete = <error>]
// CHECK:STDOUT:   %Def.ref: <error> = name_ref Def, <error> [concrete = <error>]
// CHECK:STDOUT:   %c: <error> = bind_name c, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc10: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   assign file.%c.var, <error>
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_other_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Test: <namespace> = namespace file.%Test.import, [concrete] {
// CHECK:STDOUT:     .Def = <poisoned>
// CHECK:STDOUT:     import Test//def
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Test = imports.%Test
// CHECK:STDOUT:     .c = %c
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Test.import = import Test
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %c.patt: <error> = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.var_patt: <error> = var_pattern %c.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c.var: ref <error> = var %c.var_patt [concrete = <error>]
// CHECK:STDOUT:   %.1: <error> = splice_block <error> [concrete = <error>] {
// CHECK:STDOUT:     %Test.ref: <namespace> = name_ref Test, imports.%Test [concrete = imports.%Test]
// CHECK:STDOUT:     %Def.ref: <error> = name_ref Def, <error> [concrete = <error>]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c: <error> = bind_name c, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc10: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   assign file.%c.var, <error>
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- forward_with_def.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %ForwardWithDef: type = class_type @ForwardWithDef [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ForwardWithDef [concrete]
// CHECK:STDOUT:   %ForwardWithDef.val: %ForwardWithDef = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Test.ForwardWithDef: type = import_ref Test//forward_with_def, ForwardWithDef, loaded [concrete = constants.%ForwardWithDef]
// CHECK:STDOUT:   %Test.import_ref.8f2: <witness> = import_ref Test//forward_with_def, loc6_23, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT:   %Test.import_ref.414 = import_ref Test//forward_with_def, inst16 [no loc], unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .ForwardWithDef [private] = imports.%Test.ForwardWithDef
// CHECK:STDOUT:     .c = %c
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Test.import = import Test
// CHECK:STDOUT:   %default.import = import <none>
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %c.patt: %pattern_type = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.var_patt: %pattern_type = var_pattern %c.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c.var: ref %ForwardWithDef = var %c.var_patt [concrete]
// CHECK:STDOUT:   %ForwardWithDef.ref: type = name_ref ForwardWithDef, imports.%Test.ForwardWithDef [concrete = constants.%ForwardWithDef]
// CHECK:STDOUT:   %c: ref %ForwardWithDef = bind_name c, %c.var [concrete = %c.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @ForwardWithDef [from "forward_with_def.carbon"] {
// CHECK:STDOUT:   complete_type_witness = imports.%Test.import_ref.8f2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = imports.%Test.import_ref.414
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc4_26.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   %.loc4_26.2: init %ForwardWithDef = class_init (), file.%c.var [concrete = constants.%ForwardWithDef.val]
// CHECK:STDOUT:   %.loc4_1: init %ForwardWithDef = converted %.loc4_26.1, %.loc4_26.2 [concrete = constants.%ForwardWithDef.val]
// CHECK:STDOUT:   assign file.%c.var, %.loc4_1
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_local_forward_with_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .ForwardWithDef = <poisoned>
// CHECK:STDOUT:     .c = %c
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %default.import = import <none>
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %c.patt: <error> = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.var_patt: <error> = var_pattern %c.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c.var: ref <error> = var %c.var_patt [concrete = <error>]
// CHECK:STDOUT:   %ForwardWithDef.ref: <error> = name_ref ForwardWithDef, <error> [concrete = <error>]
// CHECK:STDOUT:   %c: <error> = bind_name c, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc10: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   assign file.%c.var, <error>
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_other_forward_with_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Test: <namespace> = namespace file.%Test.import, [concrete] {
// CHECK:STDOUT:     .ForwardWithDef = <poisoned>
// CHECK:STDOUT:     import Test//forward_with_def
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Test = imports.%Test
// CHECK:STDOUT:     .c = %c
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Test.import = import Test
// CHECK:STDOUT:   name_binding_decl {
// CHECK:STDOUT:     %c.patt: <error> = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.var_patt: <error> = var_pattern %c.patt [concrete]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c.var: ref <error> = var %c.var_patt [concrete = <error>]
// CHECK:STDOUT:   %.1: <error> = splice_block <error> [concrete = <error>] {
// CHECK:STDOUT:     %Test.ref: <namespace> = name_ref Test, imports.%Test [concrete = imports.%Test]
// CHECK:STDOUT:     %ForwardWithDef.ref: <error> = name_ref ForwardWithDef, <error> [concrete = <error>]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %c: <error> = bind_name c, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc10: %empty_struct_type = struct_literal ()
// CHECK:STDOUT:   assign file.%c.var, <error>
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- forward.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Forward: type = class_type @Forward [concrete]
// CHECK:STDOUT:   %ptr: type = ptr_type %Forward [concrete]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [concrete]
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %F: %F.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:   %Test.Forward: type = import_ref Test//forward, Forward, loaded [concrete = constants.%Forward]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Forward [private] = %Forward.decl
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Test.import = import Test
// CHECK:STDOUT:   %default.import = import <none>
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT:     %c.patt: %pattern_type = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.param_patt: %pattern_type = value_param_pattern %c.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %c.param: %ptr = value_param call_param0
// CHECK:STDOUT:     %.loc4: type = splice_block %ptr [concrete = constants.%ptr] {
// CHECK:STDOUT:       %Forward.ref: type = name_ref Forward, imports.%Test.Forward [concrete = constants.%Forward]
// CHECK:STDOUT:       %ptr: type = ptr_type %Forward.ref [concrete = constants.%ptr]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %c: %ptr = bind_name c, %c.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Forward.decl: type = class_decl @Forward [concrete = constants.%Forward] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Forward {
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Forward
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%c.param: %ptr) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_local_forward.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Forward = <poisoned>
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %default.import = import <none>
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT:     %c.patt: <error> = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.param_patt: <error> = value_param_pattern %c.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %c.param: <error> = value_param call_param0
// CHECK:STDOUT:     %.loc10: type = splice_block %ptr [concrete = <error>] {
// CHECK:STDOUT:       %Forward.ref: <error> = name_ref Forward, <error> [concrete = <error>]
// CHECK:STDOUT:       %ptr: type = ptr_type <error> [concrete = <error>]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %c: <error> = bind_name c, %c.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%c.param: <error>) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_other_forward.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// 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:   %Test: <namespace> = namespace file.%Test.import, [concrete] {
// CHECK:STDOUT:     .Forward = <poisoned>
// CHECK:STDOUT:     import Test//forward
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Test = imports.%Test
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Test.import = import Test
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT:     %c.patt: <error> = binding_pattern c [concrete]
// CHECK:STDOUT:     %c.param_patt: <error> = value_param_pattern %c.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %c.param: <error> = value_param call_param0
// CHECK:STDOUT:     %.loc10: type = splice_block %ptr [concrete = <error>] {
// CHECK:STDOUT:       %Test.ref: <namespace> = name_ref Test, imports.%Test [concrete = imports.%Test]
// CHECK:STDOUT:       %Forward.ref: <error> = name_ref Forward, <error> [concrete = <error>]
// CHECK:STDOUT:       %ptr: type = ptr_type <error> [concrete = <error>]
// CHECK:STDOUT:     }
// CHECK:STDOUT:     %c: <error> = bind_name c, %c.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%c.param: <error>) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- todo_fail_private_on_redecl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Redecl: type = class_type @Redecl [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: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Redecl [private] = %Redecl.decl.loc4
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Redecl.decl.loc4: type = class_decl @Redecl [concrete = constants.%Redecl] {} {}
// CHECK:STDOUT:   %Redecl.decl.loc6: type = class_decl @Redecl [concrete = constants.%Redecl] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Redecl {
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Redecl
// CHECK:STDOUT: }
// CHECK:STDOUT: