[index] Fixup for r354942. Specify target in test to achieve stable mangling.
[index] Fixup for r354942. Specify target in test to achieve stable mangling.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@354946 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit ba905398418adad85c0928b2b787222857d0831a)

apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang