Rollup merge of #121860 - mu001999:master, r=Nilstrieb

Add a tidy check that checks whether the fluent slugs only appear once

As ``````@Nilstrieb`````` said in https://github.com/rust-lang/rust/pull/121828#issuecomment-1972622855:
> Might make sense to have a tidy check that checks whether the fluent slugs only appear once in the source code and lint for that
there's a tidy check already for sorting

We can get the tidy check error:
```
tidy check
tidy error: /path/to/rust/compiler/rustc_const_eval/messages.ftl: message `const_eval_invalid_align` is not used
tidy error: /path/to/rust/compiler/rustc_lint/messages.ftl: message `lint_trivial_untranslatable_diag` is not used
tidy error: /path/to/rust/compiler/rustc_parse/messages.ftl: message `parse_invalid_literal_suffix` is not used
tidy error: /path/to/rust/compiler/rustc_infer/messages.ftl: message `infer_need_type_info_in_coroutine` is not used
tidy error: /path/to/rust/compiler/rustc_passes/messages.ftl: message `passes_expr_not_allowed_in_context` is not used
tidy error: /path/to/rust/compiler/rustc_passes/messages.ftl: message `passes_layout` is not used
tidy error: /path/to/rust/compiler/rustc_parse/messages.ftl: message `parse_not_supported` is not used
```

r? ``````@Nilstrieb``````
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Matthias Krüger 2024-03-10 10:58:16 +01:00 committed by GitHub
commit fdcd05178d
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8 changed files with 96 additions and 28 deletions

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@ -146,9 +146,6 @@ const_eval_intern_kind = {$kind ->
*[other] {""}
}
const_eval_invalid_align =
align has to be a power of 2
const_eval_invalid_align_details =
invalid align passed to `{$name}`: {$align} is {$err_kind ->
[not_power_of_two] not a power of 2