[analyzer] Don't issue alarm in ObjCSuperCallChecker for the super class itself.
The ObjCSuperCallChecker issues alarms for various Objective-C APIs that require
a subclass to call to its superclass's version of a method when overriding it.
So, for example, it raises an alarm when the -viewDidLoad method in a subclass
of UIViewController does not call [super viewDidLoad].
This patch fixes a false alarm where the analyzer erroneously required the
implementation of the superclass itself (e.g., UIViewController) to call
super.
rdar://problem/
18416944
Differential Revision: http://reviews.llvm.org/D11842
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@244386
91177308-0d34-0410-b5e6-
96231b3b80d8