[llvm] r189315 - Move everything depending on Object/MachOFormat.h over to Support/MachO.h.

[Rafael Espíndola]

> I went ahead and reverted it (and r189319) in r189321. It looks like it also broke the tests on some platforms (specifically System z and PowerPC--endianness issue? I don't have a big endian machine to test with, so...).

The gcc compile farm (http://gcc.gnu.org/wiki/CompileFarm) has one and
it can be used of other open source development too (including llvm).

Cheers,
Rafael