Reid Kleckner 3f756fbabe Remove unnecessary fallthrough annotation after unreachable ...

Clang's -Wimplicit-fallthrough implementation warns on this. I built
clang with GCC 7.3 in +asserts and -asserts mode, and GCC doesn't warn
on this in either configuration. I think it is unnecessary. I separated
it from the large mechanical patch (https://reviews.llvm.org/D53950) in
case I am wrong and it has to be reverted.

llvm-svn: 345876

2018-11-01 19:11:05 +00:00

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