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// RUN: clang-cc -verify %s
@protocol MyProto1
@optional
- (void) FOO;
@optional
- (void) FOO;
@optional
- (void) REQ;
@optional
@end
@interface MyProto2 <MyProto1>
- (void) FOO2;
- (void) FOO3;
@end
@implementation MyProto2
- (void) FOO2{}
- (void) FOO3{}
@end
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