Tweak DeadStoresChecker to not warn about dead stores to variables that
are used in EH code.  Right now the CFG doesn't support exceptions well,
so we need this hack to avoid bogus dead store warnings.

Fixes <rdar://problem/12147586>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163353 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed