[PATCH] D44826: Add -Wunused-using, a warning that finds unused using declarations.

[Carlos Alberto Enciso via Phabricator via cfe-commits]

CarlosAlbertoEnciso marked 2 inline comments as done.
CarlosAlbertoEnciso added a comment.

@lebedev.ri,

Thanks very much for your review. I will address those issues and update the patch.


https://reviews.llvm.org/D44826