src/vs/workbench/common/notifications.ts/NotificationViewItemProgress/infinite
class NotificationViewItemProgress:	infinite(): void {
		if (this._state.infinite) {
			return;
		}

		this._state.infinite = true;

		this._state.total = undefined;
		this._state.worked = undefined;
		this._state.done = undefined;

		this._onDidChange.fire();
	}