test/Refactor/Rename/Inputs/system-header.h - third_party/swift-clang - Git at Google

 void systemFunction();

 struct SystemStruct {
 };
 typedef struct SystemStruct SystemTypedef;

 enum SystemEnum {
   SystemEnumCase
 };

 extern int systemVariable;
	void systemFunction();

	struct SystemStruct {
	};
	typedef struct SystemStruct SystemTypedef;

	enum SystemEnum {
	SystemEnumCase
	};

	extern int systemVariable;