Add missing std::move call
Add missing std::move call

This should fix
http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-incremental_build/41578/


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@311656 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang