[libcxx-commits] [libcxx] [libc++] Add __detected_or_t and use it to implement some of the allocator traits aliases (PR #115654)

[Nikolas Klauser via libcxx-commits]

philnik777 wrote:

Is there a reason we should ever not put a `_LIBCPP_NODEBUG` on internal aliases?

I don't really see how this could have anything to do with anything but aliases, since the number of struct instantiations shouldn't change.

https://github.com/llvm/llvm-project/pull/115654