[Debug] Swap dumper services at bootstrap

This commit fix a bug when using debug function too soon.
For example, if you call dump function during kernel::boot() the
dump output will be sent to stderr, even in a web context.

With this patch, the data collector is used by default, so the
dump output is send to the WDT. In a CLI context, if dump is used
too soon, the datacollector will buffer it, and release it at the
end of the script. So in this case everything will be visible by the
end used.

Author: lyrixx

EventListener/DumpListener.php

@@ -11,8 +11,8 @@
 
 namespace Symfony\Component\HttpKernel\EventListener;
 
+use Symfony\Component\Console\ConsoleEvents;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
-use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\VarDumper\Cloner\ClonerInterface;
 use Symfony\Component\VarDumper\Dumper\DataDumperInterface;
 use Symfony\Component\VarDumper\VarDumper;
@@ -50,6 +50,6 @@ public function configure()
     public static function getSubscribedEvents()
     {
         // Register early to have a working dump() as early as possible
-        return array(KernelEvents::REQUEST => array('configure', 1024));
+        return array(ConsoleEvents::COMMAND => array('configure', 1024));
     }
 }

Tests/EventListener/DumpListenerTest.php

@@ -11,8 +11,8 @@
 
 namespace Symfony\Component\HttpKernel\Tests\EventListener;
 
+use Symfony\Component\Console\ConsoleEvents;
 use Symfony\Component\HttpKernel\EventListener\DumpListener;
-use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\VarDumper\Cloner\ClonerInterface;
 use Symfony\Component\VarDumper\Cloner\Data;
 use Symfony\Component\VarDumper\Dumper\DataDumperInterface;
@@ -28,7 +28,7 @@ class DumpListenerTest extends \PHPUnit_Framework_TestCase
     public function testSubscribedEvents()
     {
         $this->assertSame(
-            array(KernelEvents::REQUEST => array('configure', 1024)),
+            array(ConsoleEvents::COMMAND => array('configure', 1024)),
             DumpListener::getSubscribedEvents()
         );
     }