[clang] [clang][bytecode] Unify elementwise integer builtins using callback pattern (PR #169957)

[Islam Imad via cfe-commits]

Islam-Imad wrote:

Hi @RKSimon ,

I hope you're doing well. I noticed the buildbot reported some failures after my PR was merged. Could you help me understand how these are related to my changes?

Thank you for your time!

https://github.com/llvm/llvm-project/pull/169957