Arthur O'Dwyer 3c8e31e17b [libc++] ADL-proof <functional> by adding _VSTD:: qualification on calls.
- std::reference_wrapper
- std::function
- std::mem_fn

While I'm here, remove _VSTD:: qualification from calls to `declval`
because it takes no arguments and thus isn't susceptible to ADL.

Differential Revision: https://reviews.llvm.org/D92884
2020-12-14 12:08:34 -05:00
..