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

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whisperity wrote:

>  Q) I ended up expanding upon the C++ simulation header, but had thoughts about breaking that up into multiple smaller files. Maybe there's an opportunity to refactor some C++ simulation files across multiple checkers as a seperate PR first, or maybe even as part of this one?

@vabridgers Definitely do such things in separate PRs. It makes the current patch cleaner if the additions to the sysroot simulation only contains what is needed for your patch. 

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