`FILECHECK_OPTS=-v` set in the environment. Follow up to r350850 as requested by Joel E. Denny in https://reviews.llvm.org/D56541 . llvm-svn: 350854
`FILECHECK_OPTS=-v` set in the environment. Follow up to r350850 as requested by Joel E. Denny in https://reviews.llvm.org/D56541 . llvm-svn: 350854