[clang] [Clang] Fix finding instantiated decls for class template specializations during instantiation (PR #72346)

[Yuxuan Chen via cfe-commits]

yuxuanchen1997 wrote:

Thanks for the review, @erichkeane. I am wondering what you mean by this needs "release note"? 

https://github.com/llvm/llvm-project/pull/72346