[clang] [Clang][Sema] Earlier type checking for builtin unary operators (PR #90500)

[Erich Keane via cfe-commits]

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

This needs a release note, likely in the 'potentially breaking changes'.  Projects are filled with code that is not ever instantiated, and Clang's aggressive instantiation can be a problem.

Else, LGTM.

https://github.com/llvm/llvm-project/pull/90500