[PATCH] D51172: [libcxx] Comment out #define __cpp_lib_node_extract, we only support half of that functionality

[Louis Dionne via Phabricator via cfe-commits]

ldionne accepted this revision.
ldionne added a comment.
This revision is now accepted and ready to land.

LGTM. Don't forget to update https://reviews.llvm.org/D48896 so it uncomments this. Also, this should be merged into LLVM 7.


Repository:
  rCXX libc++

https://reviews.llvm.org/D51172