Matthias Krüger 25914399ab Rollup merge of #141162 - mejrs:gated, r=fee1-dead ... refactor `AttributeGate` and `rustc_attr!` to emit notes during feature checking First commit changes the following: - `AttributeGate ` from an enum with (four) tuple fields to (five) named fields - adds a `notes` fields that is emitted as notes in the `PostExpansionVisitor` pass - removes the `this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date` note if the feature gate is `rustc_attrs`. - various phrasing changes and touchups - and finally, the reason why I went down this path to begin with: tell people they can use the diagnostic namespace when they hit the rustc_on_unimplemented feature gate 🙈 Second commit removes unused machinery for deprecated attributes		2025-06-12 20:03:35 +02:00
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src	Rollup merge of #141162 - mejrs:gated, r=fee1-dead	2025-06-12 20:03:35 +02:00
Cargo.toml	Revert "Use workspace lints for crates in compiler/ #138084"	2025-03-10 18:12:47 +08:00