src/vs/workbench/browser/parts/notifications/notificationsAlerts.ts/NotificationsAlerts/doTriggerAriaAlert
class NotificationsAlerts:	private doTriggerAriaAlert(notification: INotificationViewItem): void {
		let alertText: string;
		if (notification.severity === Severity.Error) {
			alertText = localize('alertErrorMessage', "Error: {0}", notification.message.linkedText.toString());
		} else if (notification.severity === Severity.Warning) {
			alertText = localize('alertWarningMessage', "Warning: {0}", notification.message.linkedText.toString());
		} else {
			alertText = localize('alertInfoMessage', "Info: {0}", notification.message.linkedText.toString());
		}

		alert(alertText);
	}