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Rollup merge of #134140 - compiler-errors:unsafe-binders-ast, r=oli-obk

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Add AST support for unsafe binders

I'm splitting up #130514 into pieces. It's impossible for me to keep up with a huge PR like that. I'll land type system support for this next, probably w/o MIR lowering, which will come later.

r? `@oli-obk`
cc `@BoxyUwU` and `@lcnr` who also may want to look at this, though this PR doesn't do too much yet
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Matthias Krüger 2024-12-13 17:25:31 +01:00 • committed by GitHub
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53 changed files with 616 additions and 18 deletions
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2
compiler/rustc_feature/src/unstable.rs
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@ -635,6 +635,8 @@ declare_features! (
/// Allows creation of instances of a struct by moving fields that have
/// not changed from prior instances of the same struct (RFC #2528)
(unstable, type_changing_struct_update, "1.58.0", Some(86555)),
/// Allows using `unsafe<'a> &'a T` unsafe binder types.
(incomplete, unsafe_binders, "CURRENT_RUSTC_VERSION", Some(130516)),
/// Allows declaring fields `unsafe`.
(incomplete, unsafe_fields, "CURRENT_RUSTC_VERSION", Some(132922)),
/// Allows const generic parameters to be defined with types that