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1// RUN: %clang_cc1 -fsyntax-only -verify %s2// expected-no-diagnostics3 4@protocol MyProto1 5@optional6- (void) FOO;7@optional8- (void) FOO1;9@required 10- (void) REQ;11@optional12@end13 14@protocol MyProto2 <MyProto1>15- (void) FOO2;16@optional17- (void) FOO3;18@end19