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diff --git a/vendor/symfony/event-dispatcher/Debug/WrappedListener.php b/vendor/symfony/event-dispatcher/Debug/WrappedListener.php
index e16627d6a..2d8126a65 100644
--- a/vendor/symfony/event-dispatcher/Debug/WrappedListener.php
+++ b/vendor/symfony/event-dispatcher/Debug/WrappedListener.php
@@ -11,9 +11,10 @@
 
 namespace Symfony\Component\EventDispatcher\Debug;
 
-use Symfony\Component\Stopwatch\Stopwatch;
 use Symfony\Component\EventDispatcher\Event;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\Stopwatch\Stopwatch;
+use Symfony\Component\VarDumper\Caster\ClassStub;
 
 /**
  * @author Fabien Potencier <fabien@symfony.com>
@@ -26,6 +27,9 @@ class WrappedListener
     private $stoppedPropagation;
     private $stopwatch;
     private $dispatcher;
+    private $pretty;
+    private $stub;
+    private static $hasClassStub;
 
     public function __construct($listener, $name, Stopwatch $stopwatch, EventDispatcherInterface $dispatcher = null)
     {
@@ -35,6 +39,26 @@ class WrappedListener
         $this->dispatcher = $dispatcher;
         $this->called = false;
         $this->stoppedPropagation = false;
+
+        if (\is_array($listener)) {
+            $this->name = \is_object($listener[0]) ? \get_class($listener[0]) : $listener[0];
+            $this->pretty = $this->name.'::'.$listener[1];
+        } elseif ($listener instanceof \Closure) {
+            $this->pretty = $this->name = 'closure';
+        } elseif (\is_string($listener)) {
+            $this->pretty = $this->name = $listener;
+        } else {
+            $this->name = \get_class($listener);
+            $this->pretty = $this->name.'::__invoke';
+        }
+
+        if (null !== $name) {
+            $this->name = $name;
+        }
+
+        if (null === self::$hasClassStub) {
+            self::$hasClassStub = class_exists(ClassStub::class);
+        }
     }
 
     public function getWrappedListener()
@@ -52,13 +76,32 @@ class WrappedListener
         return $this->stoppedPropagation;
     }
 
+    public function getPretty()
+    {
+        return $this->pretty;
+    }
+
+    public function getInfo($eventName)
+    {
+        if (null === $this->stub) {
+            $this->stub = self::$hasClassStub ? new ClassStub($this->pretty.'()', $this->listener) : $this->pretty.'()';
+        }
+
+        return array(
+            'event' => $eventName,
+            'priority' => null !== $this->dispatcher ? $this->dispatcher->getListenerPriority($eventName, $this->listener) : null,
+            'pretty' => $this->pretty,
+            'stub' => $this->stub,
+        );
+    }
+
     public function __invoke(Event $event, $eventName, EventDispatcherInterface $dispatcher)
     {
         $this->called = true;
 
         $e = $this->stopwatch->start($this->name, 'event_listener');
 
-        call_user_func($this->listener, $event, $eventName, $this->dispatcher ?: $dispatcher);
+        \call_user_func($this->listener, $event, $eventName, $this->dispatcher ?: $dispatcher);
 
         if ($e->isStarted()) {
             $e->stop();