src/vs/base/browser/ui/tree/asyncDataTree.ts/AsyncDataTreeNodeListDragAndDrop/onDragStart
class AsyncDataTreeNodeListDragAndDrop:	onDragStart(data: IDragAndDropData, originalEvent: DragEvent): void {
		this.dnd.onDragStart?.(asAsyncDataTreeDragAndDropData(data), originalEvent);
	}