src/vs/workbench/browser/parts/notifications/notificationsAlerts.ts/NotificationsAlerts/triggerAriaAlert
class NotificationsAlerts:	private triggerAriaAlert(notification: INotificationViewItem): void {
		if (notification.silent) {
			return;
		}

		// Trigger the alert again whenever the message changes
		const listener = notification.onDidChangeContent(e => {
			if (e.kind === NotificationViewItemContentChangeKind.MESSAGE) {
				this.doTriggerAriaAlert(notification);
			}
		});

		Event.once(notification.onDidClose)(() => listener.dispose());

		this.doTriggerAriaAlert(notification);
	}