[clang] [clang-tools-extra] RFC: [clang-tidy] [analyzer] Nondeterministic pointer usage improvements (PR #110471)

[via cfe-commits]

https://github.com/whisperity requested changes to this pull request.

(Also, for reference, I dug out the original CSA checkers' initial reviews from the history: https://reviews.llvm.org/D50488 and https://reviews.llvm.org/D59279.)

Even though the removed checks are alpha, maybe their removal is worth a mention in the release notes for CSA, _if_ we have such a thing in the first place. @Szelethus?

https://github.com/llvm/llvm-project/pull/110471