Macroize event handler getters and setters, part 4: DedicatedWorkerGlobalScope.
Macroize event handler getters and setters, part 5: Window.
Macroize event handler getters and setters, part 6: Worker.
Macroize event handler getters and setters, part 7: XMLHttpRequest.
Macroize event handler getters and setters, part 8: XMLHttpRequestEventTarget.