Auto merge of #117272 - matthiaskrgr:rollup-upg122z, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - #114998 (feat(docs): add cargo-pgo to PGO documentation 📝)
 - #116868 (Tweak suggestion span for outer attr and point at item following invalid inner attr)
 - #117240 (Fix documentation typo in std::iter::Iterator::collect_into)
 - #117241 (Stash and cancel cycle errors for auto trait leakage in opaques)
 - #117262 (Create a new ConstantKind variant (ZeroSized) for StableMIR)
 - #117266 (replace transmute by raw pointer cast)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors