[PATCH] D63139: [Diagnostics] Implement -Wswitch-unreachable

[Dávid Bolvanský via Phabricator via cfe-commits]

xbolva00 added a subscriber: jfb.
xbolva00 added a comment.

Adding @jfb as reviewer to get more opinions what should be done next..


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  https://reviews.llvm.org/D63139/new/

https://reviews.llvm.org/D63139