1*f4a2713aSLionel Sambuc// RUN: %clang_cc1 -fsyntax-only -verify %s 2*f4a2713aSLionel Sambuc// expected-no-diagnostics 3*f4a2713aSLionel Sambuc 4*f4a2713aSLionel Sambuc@interface MessageStore 5*f4a2713aSLionel Sambuc@property (assign, readonly) int P; 6*f4a2713aSLionel Sambuc@end 7*f4a2713aSLionel Sambuc 8*f4a2713aSLionel Sambuc@interface MessageStore (CAT) 9*f4a2713aSLionel Sambuc@property (assign) int P; 10*f4a2713aSLionel Sambuc@end 11*f4a2713aSLionel Sambuc 12*f4a2713aSLionel Sambuc@interface NeXTMbox : MessageStore 13*f4a2713aSLionel Sambuc@end 14*f4a2713aSLionel Sambuc 15*f4a2713aSLionel Sambuc@implementation NeXTMbox 16*f4a2713aSLionel Sambuc- (void) Meth { self.P = 1; } 17*f4a2713aSLionel Sambuc@end 18*f4a2713aSLionel Sambuc 19