[clang] [clang] Reapply Handle templated operators with reversed arguments (PR #72213)

[Shafik Yaghmour via cfe-commits]

shafik wrote:

So currently implementations differ here: https://godbolt.org/z/11331KW6e

This feels related to [cwg2804](https://wg21.link/cwg2804) which is not live yet but can be found [here](https://cplusplus.github.io/CWG/issues/2804.html). I can find the discussion on this from Kona but we ended up sending this to EWG b/c it was not clear what the right fixes for all the related issues are and we wanted design feedback.

CC @zygoloid @AaronBallman 

https://github.com/llvm/llvm-project/pull/72213