tests/headers/nested_vtable.hpp - third_party/github.com/rust-lang/rust-bindgen - Git at Google

 class nsISupports {
 public:
   virtual nsISupports* QueryInterface();
 };

 class nsIRunnable : public nsISupports {};

 class Runnable : public nsIRunnable {};
	class nsISupports {
	public:
	virtual nsISupports* QueryInterface();
	};

	class nsIRunnable : public nsISupports {};

	class Runnable : public nsIRunnable {};