[clang] [Clang] [Sema] Handle placeholders in '.*' expressions (PR #83103)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

> > LGTM!
> 
> Thanks. Just so you know, I still don’t have commit access, so you’d have to merge it for me—I should really look into obtaining commit access at this point perhaps

Thank you for mentioning that! It turns out that GitHub is confusing:
![Capture](https://github.com/llvm/llvm-project/assets/4587626/d1322a4b-8346-4550-bce9-ed4c159831d0)

I read that to mean you had commit privs. :-D

I support you getting commit privs, if you'd like to follow the process outlined here: https://llvm.org/docs/DeveloperPolicy.html#obtaining-commit-access but in the meantime, I'll push the button.

https://github.com/llvm/llvm-project/pull/83103