Teach RetainCountChecker that it doesn't quite understand pthread_setspecific and it should just give up when it sees it.  Fixes <rdar://problem/11282706>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155613 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed