Add accidentally deleted testcase back.
Add accidentally deleted testcase back.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@302167 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit cf1aa41d0281b52fad6343b495b503dc0964ff7a)

apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm