Add predicate for AArch64 crypto instructions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195069 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC objc_bridge. Minor refactoring.
// rdar://15454846


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195070 91177308-0d34-0410-b5e6-96231b3b80d8