[PATCH] D49271: Adding libc++ formattors for std::optional

[Davide Italiano via Phabricator via llvm-commits]

davide added a comment.

I'm afraid I had to revert this again. It broke an ubuntu lldb-cmake bot which builds with clang-3.5 (which has no `-std=c++17` support flag, as 17 wasn't there yet).

I'd recommend to update this patch with another decorator to skip places where `-std=c++17` is not available doesn't work, and then we'll try again.


Repository:
  rL LLVM

https://reviews.llvm.org/D49271