src/vs/workbench/contrib/terminal/browser/terminalGroup.ts/TerminalGroup/_getBellTitle
class TerminalGroup:	private _getBellTitle(instance: ITerminalInstance) {
		if (this._terminalService.configHelper.config.enableBell && instance.statusList.statuses.find(e => e.id === TerminalStatus.Bell)) {
			return '*';
		}
		return '';
	}