[clang] [clang][analyzer] PointerSubChecker should not warn on pointers converted to numerical type (PR #111846)

[Donát Nagy via cfe-commits]

https://github.com/NagyDonat approved this pull request.

The change LGTM, I think we can merge it.

My only nitpick was that I tweaked the PR title to make it a bit more accurate. (Feel free to tweak it further / discuss this if you disagree with my choice.)

https://github.com/llvm/llvm-project/pull/111846