Add the code and test cases for 64-bit ARM to llvm-objdump’s Mach-O symbolizer.

FYI, removed the unused MCInstrAnalysis as it does not exist for 64-bit ARM and
was causing a “couldn't initialize disassembler for target” error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222045 91177308-0d34-0410-b5e6-96231b3b80d8
Turn a leaked object into a stack variable instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222046 91177308-0d34-0410-b5e6-96231b3b80d8
Rerun AutoRegen.sh.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222050 91177308-0d34-0410-b5e6-96231b3b80d8