Rollup of 11 pull requests
Successful merges:
- rust-lang/rust#143191 (Stabilize `rwlock_downgrade` library feature)
- rust-lang/rust#147444 (Allow printing a fully-qualified path in `def_path_str`)
- rust-lang/rust#147527 (Update t-compiler beta nomination Zulip msg)
- rust-lang/rust#147670 (some `ErrorGuaranteed` cleanups)
- rust-lang/rust#147676 (Return spans out of `is_doc_comment` to reduce reliance on `.span()` on attributes)
- rust-lang/rust#147708 (const `mem::drop`)
- rust-lang/rust#147710 (Fix ICE when using contracts on async functions)
- rust-lang/rust#147716 (Fix some comments)
- rust-lang/rust#147718 (miri: use allocator_shim_contents codegen helper)
- rust-lang/rust#147729 (ignore boring locals when explaining why a borrow contains a point due to drop of a live local under polonius)
- rust-lang/rust#147742 (Revert unintentional whitespace changes to rustfmt-excluded file)
r? `@ghost`
`@rustbot` modify labels: rollup
402ce0ef07