src/vs/workbench/contrib/files/browser/views/explorerViewer.ts/FileDragAndDrop/getCompressedStatFromDragEvent
class FileDragAndDrop:	private static getCompressedStatFromDragEvent(stat: ExplorerItem, dragEvent: DragEvent): ExplorerItem {
		const target = document.elementFromPoint(dragEvent.clientX, dragEvent.clientY);
		const iconLabelName = getIconLabelNameFromHTMLElement(target);

		if (iconLabelName) {
			const { count, index } = iconLabelName;

			let i = count - 1;
			while (i > index && stat.parent) {
				stat = stat.parent;
				i--;
			}

			return stat;
		}

		return stat;
	}