[analyzer] Ignore OS X 10.8's annotations for NSMakeCollectable.

The frameworks correctly use the 'cf_consumed' and 'ns_returns_retained'
attributes for NSMakeCollectable, but we can model the behavior under
garbage collection more precisely than that.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161349 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed