[clang] [clang] CTAD: Fix require-clause is not transformed. (PR #89378)

[Haojian Wu via cfe-commits]

hokein wrote:

> This seems to have broken the bot: #89476 (you should have had an email?)
> 
> I reverted in #89476

sorry, and thanks for the revert. I will take a further look. 

https://github.com/llvm/llvm-project/pull/89378