src/vs/workbench/contrib/files/browser/views/explorerViewer.ts/FileDragAndDrop/getDragLabel
class FileDragAndDrop:	getDragLabel(elements: ExplorerItem[], originalEvent: DragEvent): string | undefined {
		if (elements.length === 1) {
			const stat = FileDragAndDrop.getCompressedStatFromDragEvent(elements[0], originalEvent);
			return stat.name;
		}

		return String(elements.length);
	}