[unittests] Fix up test after  rL313156

Bot: http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-incremental/42421

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313163 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed