Lazy listener setup

compiled_container.php

<?php

    /**
     * Gets the 'event_dispatcher' service.
     *
     * This service is shared.
     * This method always returns the same instance of the service.
     *
     * @return Symfony\Bundle\FrameworkBundle\Debug\TraceableEventDispatcher A Symfony\Bundle\FrameworkBundle\Debug\TraceableEventDispatcher instance.
     */
    protected function getEventDispatcherService()
    {
        $this->services['event_dispatcher'] = $instance = new \Symfony\Bundle\FrameworkBundle\Debug\TraceableEventDispatcher($this, $this->get('debug.stopwatch'), $this->get('monolog.logger.event'));

        $instance->addListenerService('kernel.controller', array(0 => 'data_collector.request', 1 => 'onKernelController'), 0);
        $instance->addListenerService('kernel.response', array(0 => 'monolog.handler.firephp', 1 => 'onKernelResponse'), 0);
        $instance->addListenerService('kernel.request', array(0 => 'security.firewall', 1 => 'onKernelRequest'), 8);
        $instance->addListenerService('kernel.response', array(0 => 'security.rememberme.response_listener', 1 => 'onKernelResponse'), 0);
        $instance->addListenerService('kernel.response', array(0 => 'tolkiendil.ajax_listener', 1 => 'onKernelResponse'), 0);
        $instance->addListenerService('kernel.response', array(0 => 'web_profiler.debug_toolbar', 1 => 'onKernelResponse'), -128);
        $instance->addListenerService('kernel.response', array(0 => 'sf2gen.toolbar', 1 => 'onKernelResponse'), -128);
        $instance->addSubscriberService('response_listener', 'Symfony\\Component\\HttpKernel\\EventListener\\ResponseListener');
        $instance->addSubscriberService('streamed_response_listener', 'Symfony\\Component\\HttpKernel\\EventListener\\StreamedResponseListener');
        $instance->addSubscriberService('locale_listener', 'Symfony\\Component\\HttpKernel\\EventListener\\LocaleListener');
        $instance->addSubscriberService('session_listener', 'Symfony\\Bundle\\FrameworkBundle\\EventListener\\SessionListener');
        $instance->addSubscriberService('profiler_listener', 'Symfony\\Component\\HttpKernel\\EventListener\\ProfilerListener');
        $instance->addSubscriberService('router_listener', 'Symfony\\Component\\HttpKernel\\EventListener\\RouterListener');
        $instance->addSubscriberService('twig.exception_listener', 'Symfony\\Component\\HttpKernel\\EventListener\\ExceptionListener');

        return $instance;
    }