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Rollup merge of #94635 - jhpratt:merge-deprecated-attrs, r=davidtwco

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Merge `#[deprecated]` and `#[rustc_deprecated]`

The first commit makes "reason" an alias for "note" in `#[rustc_deprecated]`, while still prohibiting it in `#[deprecated]`.

The second commit changes "suggestion" to not just be a feature of `#[rustc_deprecated]`. This is placed behind the new `deprecated_suggestion` feature. This needs a tracking issue; let me know if this PR will be approved and I can create one.

The third commit is what permits `#[deprecated]` to be used when `#![feature(staged_api)]` is enabled. This isn't yet used in stdlib (only tests), as it would require duplicating all deprecation attributes until a bootstrap occurs. I intend to submit a follow-up PR that replaces all uses and removes the remaining `#[rustc_deprecated]` code after the next bootstrap.

`@rustbot` label +T-libs-api +C-feature-request +A-attributes +S-waiting-on-review
This commit is contained in:
Matthias Krüger 2022-03-10 12:20:51 +01:00 • committed by GitHub
commit 313a668234
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42 changed files with 219 additions and 382 deletions
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compiler/rustc_span/src/symbol.rs
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@ -562,6 +562,7 @@ symbols! {
delay_span_bug_from_inside_query,
deny,
deprecated,
deprecated_suggestion,
deref,
deref_method,
deref_mut,