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

[Krystian Stasiowski via cfe-commits]

sdkrystian wrote:

The issue seems to be that `TreeTransform::RebuildCXXOperatorCallExpr` relies on `isOverloadableType` to always be true for dependent types

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