Remove referece type onproperty of abstract

class type. // rdar://14261999


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@185734 91177308-0d34-0410-b5e6-96231b3b80d8

test/SemaObjCXX/abstract-class-type-ivar.mm

@@ -17,7 +17,7 @@ class CppConcreteSub : public CppAbstractBase {
     CppConcreteSub _concrete; // expected-error{{instance variable type 'CppConcreteSub' is an abstract class}}
 }
 - (CppAbstractBase*)abstract;
-@property (nonatomic, readonly) const CppConcreteSub& Prop;  // expected-note {{property declared here}}
+@property (nonatomic, readonly) const CppConcreteSub Prop;  // expected-note {{property declared here}}
 @end
 
 @implementation Objc