[clang] [clang] Emit bad shift warnings (PR #70307)

[Budimir Aranđelović via cfe-commits]

budimirarandjelovicsyrmia wrote:

> @budimirarandjelovicsyrmia -- do you need someone to land these changes on your behalf?

I don't understand question. I think that I answered correctly to previous comments.

https://github.com/llvm/llvm-project/pull/70307