src/vs/base/browser/ui/tree/abstractTree.ts/TreeNodeListDragAndDrop/drop
class TreeNodeListDragAndDrop:	drop(data: IDragAndDropData, targetNode: ITreeNode<T, TFilterData> | undefined, targetIndex: number | undefined, originalEvent: DragEvent): void {
		this.autoExpandDisposable.dispose();
		this.autoExpandNode = undefined;

		this.dnd.drop(asTreeDragAndDropData(data), targetNode && targetNode.element, targetIndex, originalEvent);
	}