Specify checks in a more reliable way.


git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@207363 91177308-0d34-0410-b5e6-96231b3b80d8
Now with correct -disable-checks=


git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@207364 91177308-0d34-0410-b5e6-96231b3b80d8