Auto merge of #155611 - JonathanBrouwer:rollup-hUV99y1, r=JonathanBrouwer

Rollup of 5 pull requests

Successful merges:

 - rust-lang/rust#155546 (Improve E0308 error message for `impl Trait` return mismatches)
 - rust-lang/rust#152834 (Fix incorrect `let` to `const` suggestion for pattern bindings)
 - rust-lang/rust#155425 (Remove duplicated `Flags` methods.)
 - rust-lang/rust#155547 (Use per-parent disambiguators everywhere)
 - rust-lang/rust#155590 (Remove AttributeLintKind variants - part 5)