[clang] [analyzer] TaintPropagation checker strlen() should not propagate (PR #66086)

[Balazs Benics via cfe-commits]

steakhal wrote:

As I'm not a maintainer, I could not push to your branch.
Here is a patch that I think has the missing pieces to satisfy my review.
[0001-fixup-analyzer-TaintPropagation-checker-strlen-shoul.patch.txt](https://github.com/llvm/llvm-project/files/12645128/0001-fixup-analyzer-TaintPropagation-checker-strlen-shoul.patch.txt)
Apply it to your branch by `git am 0001-fixup-analyzer-TaintPropagation-checker-strlen-shoul.patch.txt`.
After that, I'm okay to squash merge this PR, if you are also okay with my suggestions.


https://github.com/llvm/llvm-project/pull/66086