Pull out incomplete pointer type checking code, used from arithmetic checking functions, into its own function.
Pull out incomplete pointer type checking code, used from arithmetic checking functions, into its own function.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@138993 91177308-0d34-0410-b5e6-96231b3b80d8

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