[clang] [analyzer] Workaround for unintended slowdown (scope increase) (PR #136720)

[Balázs Benics via cfe-commits]

https://github.com/balazs-benics-sonarsource requested changes to this pull request.

Thank you for investigating this. At Sonar, we have not yet started the upgrade to clang-20. I suppose, you already did then, thus found this regression on trunk.

Maybe we should also reflect of the quality control of our submissions of core changes too, but let's leave that after the PR is discussed, and we put out the fire.

My impression is that we shouldn't have a new flag for this, we should unconditionally apply this for now. Did you think about this?

I left a few other comments about testing but overall I'm all for this change.
Thanks again!

https://github.com/llvm/llvm-project/pull/136720