[clang] [Clang] Reject `this void` explicit object parameters (CWG2915) (PR #108817)

[Vlad Serebrennikov via cfe-commits]

Endilll wrote:

> @Endilll: I've removed the other changes from `cxx_dr_status.html` manually from this commit. Can you create the separate patch to add the new cwg issues? Thanks!

Pushed 331d65d0e271d22da9f496f2bb628b93ab515725

https://github.com/llvm/llvm-project/pull/108817