[PATCH] D45179: [libc++] Add _LIBCPP_ENABLE_NODISCARD and _LIBCPP_NODISCARD_EXT to allow pre-C++2a [[nodiscard]]

[Eric Fiselier via Phabricator via cfe-commits]

EricWF accepted this revision.
EricWF added a comment.

@lebedev.ri Sure, be my guest. It frees me up to do reviews. Thank you.

I just finished running the test suite, so it should be good to go.


https://reviews.llvm.org/D45179