rust/tests/ui/keyword/extern, branch perf-tmp

Reword "crate not found" resolve message

2025-01-24T01:19:50+00:00

``` error[E0432]: unresolved import `some_novel_crate` --> file.rs:1:5 | 1 | use some_novel_crate::Type; | ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `some_novel_crate` ``` On resolve errors where there might be a missing crate, mention `cargo add foo`: ``` error[E0433]: failed to resolve: use of unresolved module or unlinked crate `nope` --> $DIR/conflicting-impl-with-err.rs:4:11 | LL | impl From for Error { | ^^^^ use of unresolved module or unlinked crate `nope` | = help: if you wanted to use a crate named `nope`, use `cargo add nope` to add it to your `Cargo.toml` ```

Structured suggestion for `extern crate foo` when `foo` isn't resolved in import

2024-07-29T23:49:51+00:00

When encountering a name in an import that could have come from a crate that wasn't imported, use a structured suggestion to suggest `extern crate foo;` pointing at the right place in the crate. When encountering `_` in an import, do not suggest `extern crate _;`. ``` error[E0432]: unresolved import `spam` --> $DIR/import-from-missing-star-3.rs:2:9 | LL | use spam::*; | ^^^^ maybe a missing crate `spam`? | help: consider importing the `spam` crate | LL + extern crate spam; | ```

Do not use question as label

2024-07-24T21:03:27+00:00

We don't want to have questions in the diagnostic output. Instead, we use wording that communicates uncertainty, like "might": ``` error[E0432]: unresolved import `spam` --> $DIR/import-from-missing-star-3.rs:2:9 | LL | use spam::*; | ^^^^ you might be missing crate `spam` | = help: consider adding `extern crate spam` to use the `spam` crate ```

Show number in error message even for one error

2023-11-24T18:15:52+00:00

Co-authored-by: Adrian

Move /src/test to /tests

2023-01-11T09:32:08+00:00