[TextAPI] TBD Reader/Writer
Followup for r356820 to fix the bots.
Disable MachO TBD write tests for Windows.
[TextAPI] Prefix all architecture enums to fix the build on i386.
Fix the build when LLVM_TARGETS_TO_BUILD is empty.
[TextAPI] TBD Reader/Writer
[TextAPI] TBD Reader/Writer
[TextAPI] Fix a memory leak in the TBD reader.
[TextAPI] TBD Reader/Writer (bot fixes)
Revert "[TextAPI] TBD Reader/Writer"
[TextAPI] TBD Reader/Writer (bot fixes: take 2)
Revert "[TextAPI] Fix a memory leak in the TBD reader."
[TextAPI] Switch back to a custom Platform enum.