[clang] [Clang] call HandleImmediateInvocation before checking for immediate escacalating expressions (PR #124414)

[Nikita Popov via cfe-commits]

nikic wrote:

FYI this one seems like a fairly substantial compile-time regression for C++ code: https://llvm-compile-time-tracker.com/compare_clang.php?from=ad9da92cf6f735747ef04fd56937e1d76819e503&to=5815a311050ae218ebcda53adeee24ed96851943&stat=instructions%3Au&sortBy=interestingness

https://github.com/llvm/llvm-project/pull/124414