Remove addToNoHelperNeeded function that was left unused after r173649. Fixes a -Wunused warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173664 91177308-0d34-0410-b5e6-96231b3b80d8
Created ObjCARCUtil.cpp for functions which in my humble opinion are too large to static inline and place in a header file such as ObjCARC.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173666 91177308-0d34-0410-b5e6-96231b3b80d8
Fix inconsistent usage of PALIGN and PALIGNR when referring to the same instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173667 91177308-0d34-0410-b5e6-96231b3b80d8