// RUN: %clang_cc1 -fsyntax-only -verify %s // expected-no-diagnostics @protocol MyProto1 @optional - (void) FOO; @optional - (void) FOO1; @required - (void) REQ; @optional @end @protocol MyProto2 <MyProto1> - (void) FOO2; @optional - (void) FOO3; @end