Auto merge of #68330 - tmandry:rollup-5v29y9r, r=tmandry

Rollup of 9 pull requests

Successful merges:

 - #66660 (Don't warn about snake case for field puns.)
 - #68093 (Fix deref impl typedef)
 - #68204 (Use named fields for `{ast,hir}::ItemKind::Impl`)
 - #68256 (Do not ICE on malformed suggestion spans)
 - #68279 (Clean up E0198 explanation)
 - #68291 (Update sanitizer tests)
 - #68312 (Add regression test for integer literals in generic arguments in where clauses)
 - #68314 (Stop treating `FalseEdges` and `FalseUnwind` as having semantic value for const eval)
 - #68317 (Clean up E0199 explanation)

Failed merges:

r? @ghost