Auto merge of #101736 - GuillaumeGomez:rollup-f71kjdb, r=GuillaumeGomez

Auto merge of #101736 - GuillaumeGomez:rollup-f71kjdb, r=GuillaumeGomez

Rollup of 8 pull requests

Successful merges:

 - #100185 (Fix `ReErased` leaking into typeck due to `typeof(...)` recovery)
 - #100291 (constify some `CStr` methods)
 - #101677 (Add test for #101211)
 - #101723 (Impove diagnostic for `.await`ing non-futures)
 - #101724 (Allow unauthenticated users to add the `const-hack` label)
 - #101731 (rustdoc: improve rustdoc HTML suggestions handling of nested generics)
 - #101732 (Feature gate the `rustdoc::missing_doc_code_examples` lint)
 - #101735 (rustdoc: fix treatment of backslash-escaped HTML)

Failed merges:

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