error on property of objc interface type instead of crashing

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78826 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaDeclObjC.cpp

@@ -1940,6 +1940,8 @@ Sema::DeclPtrTy Sema::ActOnProperty(Scope *S, SourceLocation AtLoc,
               Diag(AtLoc, diag::warn_implements_nscopying)  
                 << FD.D.getIdentifier();
       }
+  if (T->isObjCInterfaceType())
+    Diag(FD.D.getIdentifierLoc(), diag::err_statically_allocated_object);
   
   DeclContext *DC = dyn_cast<DeclContext>(ClassDecl);
   assert(DC && "ClassDecl is not a DeclContext");

test/SemaObjC/invalid-objc-decls-1.m

@@ -32,3 +32,11 @@ Super foo( // expected-error{{interface interface type 'Super' cannot be returne
 	Super p1; // expected-error{{interface type cannot be statically allocated}}
 	return p1;
 }
+
+@interface NSMutableSet @end
+
+@interface DVTDummyAnnotationProvider  
+  @property(readonly) NSMutableSet annotations;	// expected-error{{interface type cannot be statically allocated}}
+
+@end
+