src/vs/base/browser/ui/tree/asyncDataTree.ts/AsyncDataTreeNodeListDragAndDrop/onDragOver
class AsyncDataTreeNodeListDragAndDrop:	onDragOver(data: IDragAndDropData, targetNode: IAsyncDataTreeNode<TInput, T> | undefined, targetIndex: number | undefined, originalEvent: DragEvent, raw = true): boolean | IListDragOverReaction {
		return this.dnd.onDragOver(asAsyncDataTreeDragAndDropData(data), targetNode && targetNode.element as T, targetIndex, originalEvent);
	}