Fixed an issue where the KVO swizzled type would be returned as the dynamic...

Fixed an issue where the KVO swizzled type would be returned as the dynamic type instead of the actual user-level type
 - see the test case in lang/objc/objc-dynamic-value for an example
Objective-C dynamic type lookup now works for every Objective-C type
 - previously, true dynamic lookup was only performed for type id

llvm-svn: 136763