1*67e74705SXin Li// RUN: %clang_cc1 -fsyntax-only -verify %s 2*67e74705SXin Li// expected-no-diagnostics 3*67e74705SXin Li 4*67e74705SXin Li@interface MessageStore 5*67e74705SXin Li@property (assign, readonly) int P; 6*67e74705SXin Li@end 7*67e74705SXin Li 8*67e74705SXin Li@interface MessageStore (CAT) 9*67e74705SXin Li@property (assign) int P; 10*67e74705SXin Li@end 11*67e74705SXin Li 12*67e74705SXin Li@interface NeXTMbox : MessageStore 13*67e74705SXin Li@end 14*67e74705SXin Li 15*67e74705SXin Li@implementation NeXTMbox 16*67e74705SXin Li- (void) Meth { self.P = 1; } 17*67e74705SXin Li@end 18*67e74705SXin Li 19