Auto merge of #155339 - JonathanBrouwer:rollup-2nyGW0a, r=JonathanBrouwer

Rollup of 5 pull requests

Successful merges:

 - rust-lang/rust#155331 (Reformat `top_level_options!` and `options!` macro declarations)
 - rust-lang/rust#155332 (bump std libc to `0.2.185`)
 - rust-lang/rust#155286 (attribute cleanup: rustc_confusables)
 - rust-lang/rust#155306 (`CValue::zst()` - add missing "ZST" in docs)
 - rust-lang/rust#155311 (various small `rustc_expand` cleanups)