[clang] [clang-tools-extra] [clang] Improve nested name specifier AST representation (PR #147835)

[Baranov Victor via cfe-commits]

vbvictor wrote:

Hi!
We are seeing regression in `clang-tidy` in `modernize-type-traits` check https://github.com/llvm/llvm-project/issues/153649. I confirmed locally that on 91cdd35008e9ab32dffb7e401cdd7313b3461892 it is bugged and commit before it is not fc44a4fcd3c54be927c15ddd9211aca1501633e7


https://github.com/llvm/llvm-project/pull/147835