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1// RUN: %clang_cc1 -fsyntax-only -verify %s2// expected-no-diagnostics3 4@interface MessageStore5@property (assign, readonly) int P;6@end7 8@interface MessageStore (CAT)9@property (assign) int P;10@end11 12@interface NeXTMbox : MessageStore13@end14 15@implementation NeXTMbox16- (void) Meth { self.P = 1; }17@end18 19