[clang] [clang] Fix the local parameter of void type inside the `Requires` expression. (PR #109831)

[via cfe-commits]

c8ef wrote:

> I think I agree with @mizvekov's idea of merging the parameter checks into SemaType; we can probably in part reuse GetTypeForDeclarator. I would appreciate it if we can see some exploration here.

Apologies for the delayed response. The implementation I provided is actually derived from `GetTypeForDeclarator`, specifically `GetFullTypeForDeclarator`. The challenge I faced is that this function handles numerous cases. My initial idea was to extract a function from `GetTypeForDeclarator` to manage function parameters, but I'm uncertain if this is the best approach. I'm wondering what level of granularity we should aim for when reusing the current implementation in `GetTypeForDeclarator`?

https://github.com/llvm/llvm-project/pull/109831