[PATCH] D73852: [clang] detect switch fallthrough marked by a comment (PR43465)

[Nick Desaulniers via Phabricator via cfe-commits]

nickdesaulniers added a comment.

Doesn't GCC also support multiple different levels of this warning for all kinds of different spellings?
https://developers.redhat.com/blog/2017/03/10/wimplicit-fallthrough-in-gcc-7/

I have concerns about the performance of this warning.  We're going to parse every comment?


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https://reviews.llvm.org/D73852