[clang] [clang] Allow delayed function instantiation at TU end if initial instantiation fails (PR #117167)

[via cfe-commits]

StefanPaulet wrote:

> I have a draft which implements the capture rule for deferred lambda instantiation #105953 I've been too busy lately and haven't continued working on this Pull Request.If you're interested,you can take a look at it.

Will look there, thanks

https://github.com/llvm/llvm-project/pull/117167