2297                                       ObjCMethodDecl *MethodImpl,  in CheckMethodOverrideReturn()  argument
2304                             MethodImpl->getObjCDeclQualifier())) {  in CheckMethodOverrideReturn()
2306       S.Diag(MethodImpl->getLocation(),  in CheckMethodOverrideReturn()
2310           << MethodImpl->getDeclName()  in CheckMethodOverrideReturn()
2311           << MethodImpl->getReturnTypeSourceRange();  in CheckMethodOverrideReturn()
2319       !isa<ObjCImplementationDecl>(MethodImpl->getDeclContext()) &&  in CheckMethodOverrideReturn()
2320       !S.Context.hasSameNullabilityTypeQualifier(MethodImpl->getReturnType(),  in CheckMethodOverrideReturn()
2324       *MethodImpl->getReturnType()->getNullability(S.Context);  in CheckMethodOverrideReturn()
2327       S.Diag(MethodImpl->getLocation(),  in CheckMethodOverrideReturn()
2331              ((MethodImpl->getObjCDeclQualifier() & Decl::OBJC_TQ_CSNullability)  in CheckMethodOverrideReturn()
2340   if (S.Context.hasSameUnqualifiedType(MethodImpl->getReturnType(),  in CheckMethodOverrideReturn()
2353           MethodImpl->getReturnType()->getAs<ObjCObjectPointerType>()) {  in CheckMethodOverrideReturn()
2369   S.Diag(MethodImpl->getLocation(), DiagID)  in CheckMethodOverrideReturn()
2370       << MethodImpl->getDeclName() << MethodDecl->getReturnType()  in CheckMethodOverrideReturn()
2371       << MethodImpl->getReturnType()  in CheckMethodOverrideReturn()
2372       << MethodImpl->getReturnTypeSourceRange();  in CheckMethodOverrideReturn()
2381                                      ObjCMethodDecl *MethodImpl,  in CheckMethodOverrideParam()  argument
2396             << MethodImpl->getDeclName();  in CheckMethodOverrideParam()
2400           << MethodImpl->getDeclName();  in CheckMethodOverrideParam()
2411       !isa<ObjCImplementationDecl>(MethodImpl->getDeclContext()) &&  in CheckMethodOverrideParam()
2455     << MethodImpl->getDeclName() << IfaceTy << ImplTy;  in CheckMethodOverrideParam()