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

[Balázs Benics via cfe-commits]

balazs-benics-sonarsource wrote:

Thanks for the fix, I'll proceed with the backport if you still believe it's worthy. @NagyDonat 

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