[clang] [Clang][Sema] Always use latest redeclaration of primary template (PR #114258)

[Krystian Stasiowski via cfe-commits]

sdkrystian wrote:

@erichkeane @felipepiovezan Given that all the failing tests relate to expression evaluation within modules, I think the problem is in `ASTImporter`.

https://github.com/llvm/llvm-project/pull/114258