Fix typo in FileCheck.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180877 91177308-0d34-0410-b5e6-96231b3b80d8
[documenting declaration]: Remove arc liftime qualifiers
when doccumenting declrations in comments.
// rdar://13757500


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180880 91177308-0d34-0410-b5e6-96231b3b80d8