[clang] Qualify non-dependent types of a class template with its declaration (PR #67566)

[Vassil Vassilev via cfe-commits]

vgvassilev wrote:

@diseraluca, since this code touches a case where we do some best effort recovery, would it be possible to change that interface to take a lambda/callback function and specialize it in your end to cover the docs case? 

https://github.com/llvm/llvm-project/pull/67566