src/vs/editor/common/viewModelEventDispatcher.ts/ViewModelEventDispatcher/emitSingleViewEvent
class ViewModelEventDispatcher:	public emitSingleViewEvent(event: ViewEvent): void {
		try {
			const eventsCollector = this.beginEmitViewEvents();
			eventsCollector.emitViewEvent(event);
		} finally {
			this.endEmitViewEvents();
		}
	}