[llvm] [libcxx] [libc++] Format the code base (PR #74334)

[Nikolas Klauser via llvm-commits]

philnik777 wrote:

@petrhosek I just looked and thought the same. If this is actually the problem, IMO it's kinda insane that the windows headers don't properly IWYU. Would be great if you could check it out and make a patch to fix it if that's actually the problem. I'd rather avoid reverting any re-applying this patch.

https://github.com/llvm/llvm-project/pull/74334