sync: Once is no longer unsafe, update docs#14813
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emberian:once-docs-unsafe
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Nope. Can't borrow static which contains Unsafe.
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Fixes exit/yield points not getting highlighted in such blocks for `highlight_related` (rust-lang#14813; and possibly other bugs in features that use `preorder_expr`).
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…=Veykril Fix `preorder_expr` skipping the `else` block of let-else statements Fixes exit/yield points not getting highlighted in such blocks for `highlight_related` (rust-lang#14813; and possibly other bugs in features that use `preorder_expr`).
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Looks for `TryFrom` implementations with uninhabited error types and suggests to implement `From` instead. Fixes rust-lang/rust-clippy#2144 --- changelog: Add [`infallible_try_from`] lint
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