Changing this line of code back to the way it was before Alp's config.h clean up changes.
I've already spoken to Alp and he signed off on making this one change, so that our buildbots
go green in the short term.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@210238 91177308-0d34-0410-b5e6-96231b3b80d8