[clang] [Clang][Parser] Have the depth of the abbreviated generic lambdas inside a requires clause differ from the surrounding generic lambda (PR #80656)

[Shafik Yaghmour via cfe-commits]

https://github.com/shafik commented:

I think this makes sense but I would like @cor3ntin to approve.

https://github.com/llvm/llvm-project/pull/80656