Auto merge of #70275 - Dylan-DPC:rollup-1fbosob, r=Dylan-DPC

Rollup of 10 pull requests

Successful merges:

 - #68099 (Amend Rc/Arc::from_raw() docs regarding unsafety)
 - #70172 (parse/lexer: support `StringReader::retokenize` called on external files.)
 - #70209 (parser: recover on `for<'a> |...| body` closures)
 - #70223 (fix type of const params in associated types.)
 - #70229 (more clippy fixes)
 - #70240 (Return NonZeroU64 from ThreadId::as_u64.)
 - #70250 (Remove wrong entry from RELEASES.md)
 - #70253 (Remove another wrong entry from RELEASES.md)
 - #70254 (couple more clippy fixes (let_and_return, if_same_then_else))
 - #70266 (proc_macro_harness: Use item header spans for errors)

Failed merges:

r? @ghost