Thank you for upstreaming ARC target to clang! I checked it in couple with lldb - works well. So, the revision is good to me. But it seems, I have no rights to accept revisions yet...
Thanks for taking a look here, and sorry for the delay.
I tried to follow the other target's usage patterns here.
I'm happy to update/change this...I'll add a couple of clang reviewers here to weigh in?