[clang-tools-extra] [clang-tidy]add new check `bugprone-compare-pointer-to-member-virtual-function` (PR #66055)

[Piotr Zegar via cfe-commits]

https://github.com/PiotrZSL commented:

Few more nits, consider improving documentation & diagnostic message.

https://github.com/llvm/llvm-project/pull/66055