I've added the reserved field as an "optional" in YAML, but I've added asserts in the yaml2macho code to enforce that the field is present in mach_header_64, but not in mach_header.
llvm-svn: 269320
Adding the initial files for adding MachO support to yaml2obj. Passing a MachO file will result in an error.
I will be implementing obj2yaml and yaml2obj for MachO in parallel so that one can be used to test the other.
llvm-svn: 269244