Companion patch to r171621 which changed the interface for creating TTI passes to a create-pass function instead of a direct constructor call.
Companion patch to r171621 which changed the interface for creating TTI
passes to a create-pass function instead of a direct constructor call.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@171622 91177308-0d34-0410-b5e6-96231b3b80d8

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