Auto merge of #147162 - matthiaskrgr:rollup-4bv1xzb, r=matthiaskrgr
Rollup of 5 pull requests
Successful merges:
- rust-lang/rust#146937 (std: implement `hostname`)
- rust-lang/rust#147040 (mbe: macro_check: Fix function comments referencing non-existent parameters)
- rust-lang/rust#147131 (Use MirPatch in simplify_branches.)
- rust-lang/rust#147133 (Remove one loop in `extract_cfg_from_attrs`)
- rust-lang/rust#147150 (Emit allocator attributes for allocator shim)
r? `@ghost`
`@rustbot` modify labels: rollup
