Disable dead stores checker for template instantations.  Fixes <rdar://problem/13213575>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175425 91177308-0d34-0410-b5e6-96231b3b80d8
Update test cases to account for DIBuilder type changes.

Paired commit with LLVM, may produce temporary build breakage.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175427 91177308-0d34-0410-b5e6-96231b3b80d8