test/SILGen/Inputs/objc_dynamic_init.h - third_party/swift - Git at Google

 @import Foundation;

 @protocol ObjCInitProto

 - initWithProto:(NSInteger)x;

 @end

 @interface ObjCBaseWithInitProto: NSObject <ObjCInitProto>

 - initWithProto:(NSInteger)x NS_DESIGNATED_INITIALIZER;

 @end
	@import Foundation;

	@protocol ObjCInitProto

	- initWithProto:(NSInteger)x;

	@end

	@interface ObjCBaseWithInitProto: NSObject <ObjCInitProto>

	- initWithProto:(NSInteger)x NS_DESIGNATED_INITIALIZER;

	@end