[arcmt] Use CFBridgingRetain/CFBridgingRelease instead of __bridge_retained/__bridge_transfer
when migrating.

rdar://11569198

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157785 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed