[PATCH] D49317: Move __construct_forward (etc.) out of std::allocator_traits.

[Arthur O'Dwyer via Phabricator via cfe-commits]

Quuxplusone added a comment.

@mclow.lists: Well, anyway, is this pure refactoring acceptable, or would you prefer to keep these helpers inside `allocator_traits` until a better solution to constexpr-memcpy can be invented?


Repository:
  rCXX libc++

https://reviews.llvm.org/D49317