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Rollup merge of #133424 - Nadrieril:guard-patterns-parsing, r=fee1-dead

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Parse guard patterns

This implements the parsing of [RFC3637 Guard Patterns](https://rust-lang.github.io/rfcs/3637-guard-patterns.html) (see also [tracking issue](https://github.com/rust-lang/rust/issues/129967)). This PR is extracted from https://github.com/rust-lang/rust/pull/129996 with minor modifications.

cc `@max-niederman`
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Matthias Krüger 2024-12-08 17:18:50 +01:00 • committed by GitHub
commit 24ccb158b8
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2
clippy_lints/src/unnested_or_patterns.rs
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@ -234,7 +234,7 @@ fn transform_with_focus_on_idx(alternatives: &mut ThinVec<P<Pat>>, focus_idx: us
// In the case of only two patterns, replacement adds net characters.
| Ref(_, Mutability::Not)
// Dealt with elsewhere.
| Or(_) | Paren(_) | Deref(_) => false,
| Or(_) | Paren(_) | Deref(_) | Guard(..) => false,
// Transform `box x | ... | box y` into `box (x | y)`.
//
// The cases below until `Slice(...)` deal with *singleton* products.