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1// RUN: %clang_cc1 -verify %s
2
3@protocol MyProto1
4@optional
5- (void) FOO;
6@optional
7- (void) FOO;
8@optional
9- (void) REQ;
10@optional
11@end
12
13@interface  MyProto2 <MyProto1>
14- (void) FOO2;
15- (void) FOO3;
16@end
17
18@implementation MyProto2
19- (void) FOO2{}
20- (void) FOO3{}
21@end
22