Try to appease the atom buildbots

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178898 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Eliminates all the cases with unknown family.

Now treat AF_None family as impossible in isTrackedFamily()

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178899 91177308-0d34-0410-b5e6-96231b3b80d8
doce parsing: adding few more headerdoc tags.
// rdar://12379114


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178903 91177308-0d34-0410-b5e6-96231b3b80d8