[clang] [Lifetime Safety] Name operator calls in alias-chain diagnostics (PR #221803)

[via cfe-commits]

https://github.com/NeKon69 approved this pull request.

Maybe we should instead add a special wording for operators instead of using the generic "results of call to"? Though I am not 100% certain which way we want it, could be fine either way.

https://github.com/llvm/llvm-project/pull/221803