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carbon-lang/toolchain/check/testdata/interface/import_access.carbon
T
Chandler Carruth 2c9739799b Render diagnostics through the terminal library (#7683) 
Diagnostic rendering was part of the data model: `Loc::FormatLocation`
and
`Loc::FormatSnippet` wrote plain text to a stream, so no capability,
color, or
terminal width could reach them.

A diagnostic is now one message with labels, contexts, and location
information
attached, and `Diagnostics::Renderer` draws it into a
`Terminal::Buffer`. The
design is in `toolchain/docs/diagnostics_rendering.md` (#7668),
authoring in
`toolchain/docs/diagnostics.md`.

Before:

```
example.carbon:6:3: error: 1 argument passed to function expecting 0 arguments
  Run0(1);
  ^~~~~~~
example.carbon:3:1: note: calling function declared here
fn Run0() {}
^~~~~~~~~~~
```

After:

```
error: 1 argument passed to function expecting 0 arguments
       ╭─┤ example.carbon:6:3
       ┆
     3 │ fn Run0() {}
       · ─────┬─────
       ·      ╰──┤ calling function declared here
       ┆
->   6 │   Run0(1);
       ·   ───────
       ╰────────────
```

`--no-diagnostic-snippets` gives a compact form, `example.carbon:6:3-9`.
File
tests use it; the rendering tests under `toolchain/diagnostics/testdata`
ask for
snippets.

C++ interop diagnostics are data now rather than text Clang drew:
`SemIR::ClangSourceLocId` names a `clang::SourceRange`, and a Clang
location is
marked as the point it names.

`StreamConsumer` moves to a `:renderer` target that `:emitter` does not
depend
on, keeping `common/terminal` out of `consumer.h`. Capabilities come
from the
file behind the error stream, so tests get plain ASCII.

`renderer_fuzzer` draws diagnostics built from fuzzer bytes with every
capability combination, since a shape the renderer doesn't expect must
never be
why the compiler dies while reporting a problem.

TODOs mark the follow-ups: line weights and crossing lines, wrapping
that keeps
a quoted type whole, and ordering diagnostics that share a byte offset.

Also: `IncorrectExtension`'s hint moves into its message, since its note
had no
location of its own, and `strip_noise` in `check_diagnostics.py` blanks
multi-line `#define`s instead of deleting them.

Assisted-by: Claude Code
2026-10-15 06:08:57 +00:00

589 lines
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// 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/interface/import_access.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/import_access.carbon
// ============================================================================
// Setup files
// ============================================================================
// --- def.carbon
package Test library "[[@TEST_NAME]]";
private interface Def {}
// --- forward_with_def.carbon
package Test library "[[@TEST_NAME]]";
private interface ForwardWithDef;
interface ForwardWithDef {}
// --- forward.carbon
package Test library "[[@TEST_NAME]]";
// TODO: Import of forward declared interfaces crashes.
// private interface Forward;
// ============================================================================
// Test files
// ============================================================================
// --- def.impl.carbon
impl package Test library "[[@TEST_NAME]]";
fn F(unused i: Def) {}
// --- fail_local_def.carbon
package Test library "[[@TEST_NAME]]";
import library "def";
// CHECK:STDERR: fail_local_def.carbon:[[@LINE+2]]:16-18: error: name `Def` not found [NameNotFound]
// CHECK:STDERR:
fn F(unused i: Def) {}
// --- fail_other_def.carbon
package Other library "[[@TEST_NAME]]";
import Test library "def";
// CHECK:STDERR: fail_other_def.carbon:[[@LINE+2]]:16-23: error: member name `Def` not found in `Test` [MemberNameNotFoundInInstScope]
// CHECK:STDERR:
fn F(unused i: Test.Def) {}
// --- forward_with_def.impl.carbon
impl package Test library "[[@TEST_NAME]]";
fn F(unused i: 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+2]]:16-29: error: name `ForwardWithDef` not found [NameNotFound]
// CHECK:STDERR:
fn F(unused i: 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+2]]:16-34: error: member name `ForwardWithDef` not found in `Test` [MemberNameNotFoundInInstScope]
// CHECK:STDERR:
fn F(unused i: Test.ForwardWithDef) {}
// --- fail_todo_forward.impl.carbon
impl package Test library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_todo_forward.impl.carbon:[[@LINE+3]]:16-22: error: name `Forward` not found [NameNotFound]
// CHECK:STDERR:
// CHECK:STDERR: fail_todo_forward.impl.carbon:[[@LINE+1]]:16-22: error: name `Forward` used before it was declared [NameUseBeforeDecl]
fn F(unused i: Forward*) {}
// CHECK:STDERR: fail_todo_forward.impl.carbon:[[@LINE+2]]:11-17: note: declared here [NameUseBeforeDeclNote]
// CHECK:STDERR:
interface Forward {}
// --- fail_local_forward.carbon
package Test library "[[@TEST_NAME]]";
import library "forward";
// CHECK:STDERR: fail_local_forward.carbon:[[@LINE+2]]:16-22: error: name `Forward` not found [NameNotFound]
// CHECK:STDERR:
fn F(unused i: Forward*) {}
// --- fail_other_forward.carbon
package Other library "[[@TEST_NAME]]";
import Test library "forward";
// CHECK:STDERR: fail_other_forward.carbon:[[@LINE+2]]:16-22: error: name `Forward` not found [NameNotFound]
// CHECK:STDERR:
fn F(unused i: Forward*) {}
// --- todo_fail_private_on_redecl.carbon
library "[[@TEST_NAME]]";
private interface Redecl;
private interface Redecl {}
// CHECK:STDOUT: --- def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %Def.type: type = facet_type <@Def> [concrete]
// CHECK:STDOUT: %Self: %Def.type = symbolic_binding Self, 0 [symbolic]
// 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 = interface_decl @Def [concrete = constants.%Def.type] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Def {
// CHECK:STDOUT: %Self: %Def.type = symbolic_binding Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %Def.WithSelf.decl = interface_with_self_decl @Def [concrete]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Def.WithSelf(constants.%Self) {}
// CHECK:STDOUT:
// CHECK:STDOUT: --- forward_with_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %ForwardWithDef.type: type = facet_type <@ForwardWithDef> [concrete]
// CHECK:STDOUT: %Self: %ForwardWithDef.type = symbolic_binding Self, 0 [symbolic]
// 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 = interface_decl @ForwardWithDef [concrete = constants.%ForwardWithDef.type] {} {}
// CHECK:STDOUT: %ForwardWithDef.decl.loc6: type = interface_decl @ForwardWithDef [concrete = constants.%ForwardWithDef.type] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @ForwardWithDef {
// CHECK:STDOUT: %Self: %ForwardWithDef.type = symbolic_binding Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %ForwardWithDef.WithSelf.decl = interface_with_self_decl @ForwardWithDef [concrete]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @ForwardWithDef.WithSelf(constants.%Self) {}
// CHECK:STDOUT:
// CHECK:STDOUT: --- forward.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- def.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %Def.type: type = facet_type <@Def> [concrete]
// CHECK:STDOUT: %Self: %Def.type = symbolic_binding Self, 0 [symbolic]
// CHECK:STDOUT: %pattern_type: type = pattern_type %Def.type [concrete]
// CHECK:STDOUT: %i.param_patt: %pattern_type = value_param_pattern [concrete]
// CHECK:STDOUT: %i.patt: %pattern_type = wrapper_binding_pattern i, %i.param_patt [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Test.Def: type = import_ref Test//def, Def, loaded [concrete = constants.%Def.type]
// CHECK:STDOUT: %Test.import_ref.d50 = import_ref Test//def, loc4_23, unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Def [private] = imports.%Test.Def
// 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: %i.param_patt: %pattern_type = value_param_pattern [concrete = constants.%i.param_patt]
// CHECK:STDOUT: %i.patt: %pattern_type = wrapper_binding_pattern i, %i.param_patt [concrete = constants.%i.patt]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: %Def.type = value_param call_param0
// CHECK:STDOUT: %Def.ref: type = name_ref Def, imports.%Test.Def [concrete = constants.%Def.type]
// CHECK:STDOUT: %i: %Def.type = wrapper_binding i, %i.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Def [from "def.carbon"] {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Test.import_ref.d50
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.param: %Def.type) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Def.WithSelf(constants.%Self) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_local_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// 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: .Def = <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: %i.param_patt: <error> = value_param_pattern [concrete = <error>]
// CHECK:STDOUT: %i.patt: <error> = wrapper_binding_pattern i, %i.param_patt [concrete = <error>]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: <error> = value_param call_param0
// CHECK:STDOUT: %Def.ref: <error> = name_ref Def, <error> [concrete = <error>]
// CHECK:STDOUT: %i: <error> = wrapper_binding i, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.param: <error>) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_other_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %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: .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: %i.param_patt: <error> = value_param_pattern [concrete = <error>]
// CHECK:STDOUT: %i.patt: <error> = wrapper_binding_pattern i, %i.param_patt [concrete = <error>]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: <error> = value_param call_param0
// 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: %i: <error> = wrapper_binding i, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.param: <error>) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- forward_with_def.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %ForwardWithDef.type: type = facet_type <@ForwardWithDef> [concrete]
// CHECK:STDOUT: %Self: %ForwardWithDef.type = symbolic_binding Self, 0 [symbolic]
// CHECK:STDOUT: %pattern_type: type = pattern_type %ForwardWithDef.type [concrete]
// CHECK:STDOUT: %i.param_patt: %pattern_type = value_param_pattern [concrete]
// CHECK:STDOUT: %i.patt: %pattern_type = wrapper_binding_pattern i, %i.param_patt [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Test.ForwardWithDef: type = import_ref Test//forward_with_def, ForwardWithDef, loaded [concrete = constants.%ForwardWithDef.type]
// CHECK:STDOUT: %Test.import_ref.223 = import_ref Test//forward_with_def, loc6_26, unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .ForwardWithDef [private] = imports.%Test.ForwardWithDef
// 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: %i.param_patt: %pattern_type = value_param_pattern [concrete = constants.%i.param_patt]
// CHECK:STDOUT: %i.patt: %pattern_type = wrapper_binding_pattern i, %i.param_patt [concrete = constants.%i.patt]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: %ForwardWithDef.type = value_param call_param0
// CHECK:STDOUT: %ForwardWithDef.ref: type = name_ref ForwardWithDef, imports.%Test.ForwardWithDef [concrete = constants.%ForwardWithDef.type]
// CHECK:STDOUT: %i: %ForwardWithDef.type = wrapper_binding i, %i.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @ForwardWithDef [from "forward_with_def.carbon"] {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Test.import_ref.223
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.param: %ForwardWithDef.type) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @ForwardWithDef.WithSelf(constants.%Self) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_local_forward_with_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// 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: .ForwardWithDef = <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: %i.param_patt: <error> = value_param_pattern [concrete = <error>]
// CHECK:STDOUT: %i.patt: <error> = wrapper_binding_pattern i, %i.param_patt [concrete = <error>]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: <error> = value_param call_param0
// CHECK:STDOUT: %ForwardWithDef.ref: <error> = name_ref ForwardWithDef, <error> [concrete = <error>]
// CHECK:STDOUT: %i: <error> = wrapper_binding i, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.param: <error>) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_other_forward_with_def.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %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: .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: %i.param_patt: <error> = value_param_pattern [concrete = <error>]
// CHECK:STDOUT: %i.patt: <error> = wrapper_binding_pattern i, %i.param_patt [concrete = <error>]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: <error> = value_param call_param0
// 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: %i: <error> = wrapper_binding i, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.param: <error>) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_todo_forward.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %Forward.type: type = facet_type <@Forward> [concrete]
// CHECK:STDOUT: %Self: %Forward.type = symbolic_binding Self, 0 [symbolic]
// 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: %Test.import = import Test
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT: %i.param_patt: <error> = value_param_pattern [concrete = <error>]
// CHECK:STDOUT: %i.patt: <error> = wrapper_binding_pattern i, %i.param_patt [concrete = <error>]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: <error> = value_param call_param0
// CHECK:STDOUT: %.loc7: 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: %i: <error> = wrapper_binding i, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Forward.decl: type = interface_decl @Forward [concrete = constants.%Forward.type] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Forward {
// CHECK:STDOUT: %Self: %Forward.type = symbolic_binding Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %Forward.WithSelf.decl = interface_with_self_decl @Forward [concrete]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.param: <error>) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Forward.WithSelf(constants.%Self) {}
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_local_forward.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// 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: %i.param_patt: <error> = value_param_pattern [concrete = <error>]
// CHECK:STDOUT: %i.patt: <error> = wrapper_binding_pattern i, %i.param_patt [concrete = <error>]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: <error> = value_param call_param0
// CHECK:STDOUT: %.loc8: 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: %i: <error> = wrapper_binding i, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.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: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Test: <namespace> = namespace file.%Test.import, [concrete] {
// 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: .Forward = <poisoned>
// 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: %i.param_patt: <error> = value_param_pattern [concrete = <error>]
// CHECK:STDOUT: %i.patt: <error> = wrapper_binding_pattern i, %i.param_patt [concrete = <error>]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i.param: <error> = value_param call_param0
// CHECK:STDOUT: %.loc8: 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: %i: <error> = wrapper_binding i, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%i.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: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %Redecl.type: type = facet_type <@Redecl> [concrete]
// CHECK:STDOUT: %Self: %Redecl.type = symbolic_binding Self, 0 [symbolic]
// 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 = interface_decl @Redecl [concrete = constants.%Redecl.type] {} {}
// CHECK:STDOUT: %Redecl.decl.loc6: type = interface_decl @Redecl [concrete = constants.%Redecl.type] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Redecl {
// CHECK:STDOUT: %Self: %Redecl.type = symbolic_binding Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %Redecl.WithSelf.decl = interface_with_self_decl @Redecl [concrete]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Redecl.WithSelf(constants.%Self) {}
// CHECK:STDOUT:
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