[PATCH] D47090: Implement C++17 .
EricWF added a comment. In https://reviews.llvm.org/D47090#1105389, @Quuxplusone wrote: > > I would prefer if we completed (according to > > the current standard, not the LFTS spec), and then moved it. > > Would you be willing to do that instead? > > Let me see if I understand. libc++'s `` dif
