src/vs/workbench/contrib/remote/browser/tunnelView.ts/PortColumn/project
class PortColumn:	project(row: ITunnelItem): ActionBarCell {
		const isAdd = row.tunnelType === TunnelType.Add;
		const label = row.label;
		let tooltip: string = '';
		if (row instanceof TunnelItem && !isAdd) {
			tooltip = `${row.portTooltip} ${row.tooltipPostfix}`;
		} else {
			tooltip = label;
		}
		return {
			label, tunnel: row, menuId: MenuId.TunnelPortInline,
			editId: row.tunnelType === TunnelType.Add ? TunnelEditId.New : TunnelEditId.Label, tooltip
		};
	}