[c-index-test] Do install c-index-test because it's not just for tests, it's also setup as 'INTERNAL_TOOL'.
[c-index-test] Do install c-index-test because it's not just for tests,
it's also setup as 'INTERNAL_TOOL'.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@167432 91177308-0d34-0410-b5e6-96231b3b80d8

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