[llvm-branch-commits] [clang] Backport taint analysis slowdown regression fix (PR #105516)

[Gábor Horváth via llvm-branch-commits]

https://github.com/Xazax-hun approved this pull request.

LGTM! We should avoid performance regressions and for some projects this could be a serious one. I agree with backporting the workaround. 

https://github.com/llvm/llvm-project/pull/105516