| // RUN: %clang_cc1 -verify -Wno-objc-root-class %s | |
| // expected-no-diagnostics | |
| @protocol MyProto1 | |
| @optional | |
| - (void) FOO; | |
| @optional | |
| - (void) FOO1; | |
| @optional | |
| - (void) REQ; | |
| @optional | |
| @end | |
| @interface MyProto2 <MyProto1> | |
| - (void) FOO2; | |
| - (void) FOO3; | |
| @end | |
| @implementation MyProto2 | |
| - (void) FOO2{} | |
| - (void) FOO3{} | |
| @end |