[clang] [Clang][Sema] Fix crash when using name of UnresolvedUsingValueDecl with template arguments (PR #83842)

[Krystian Stasiowski via cfe-commits]

sdkrystian wrote:

So, it seems that this crash occurs because we filter out all non-template functions, which will trigger ADL if the only class member we found was a non-template function.

https://github.com/llvm/llvm-project/pull/83842