test/Modules/Inputs/class-extension/a-proto.h - clang - Git at Google

 @protocol NSObject
 @end

 @protocol AProto <NSObject>
 @property (nonatomic, readwrite, assign) int p0;
 @property (nonatomic, readwrite, assign) int p1;
 @end
	@protocol NSObject
	@end

	@protocol AProto <NSObject>
	@property (nonatomic, readwrite, assign) int p0;
	@property (nonatomic, readwrite, assign) int p1;
	@end