46ecc10c69
Rollup of 8 pull requests Successful merges: - #117828 (Avoid iterating over hashmaps in astconv) - #117832 (interpret: simplify handling of shifts by no longer trying to handle signed and unsigned shift amounts in the same branch) - #117891 (Recover `dyn` and `impl` after `for<...>`) - #117957 (if available use a Child's pidfd for kill/wait) - #117988 (Handle attempts to have multiple `cfg`d tail expressions) - #117994 (Ignore but do not assume region obligations from unifying headers in negative coherence) - #118000 (Make regionck care about placeholders in outlives components) - #118068 (subtree update cg_gcc 2023/11/17) r? `@ghost` `@rustbot` modify labels: rollup
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