retain/release checker: Flag a warning for non-owned objects returned
where an owned one is expected.  Also add preliminary checking for
returning a positive retain count object in GC mode where an owned GC
object is expected.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71388 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed