[PATCH] D123517: [llvm-lib] Add /WX, warn by default on empty inputs, add opt-out

[Nico Weber via Phabricator via llvm-commits]

thakis added a comment.

Thanks!

Before this change, every diag that llvm-lib emitted was fatal. So this is the only diag that needs WX / ignore.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123517/new/

https://reviews.llvm.org/D123517