[clang] [clang] Avoid inheriting [[noreturn]] in explicit function template specializations (PR #150003)

[Alexander Kornienko via cfe-commits]

https://github.com/alexfh approved this pull request.

The fix looks good now.

We might still want to revisit the original patch though (https://github.com/llvm/llvm-project/pull/145166#issuecomment-3100202999).

https://github.com/llvm/llvm-project/pull/150003