[FrameworkBundle][Console][EventDispatcher] Fixed debug:event command

src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php

@@ -311,4 +311,15 @@ abstract class Descriptor implements DescriptorInterface
 
         return $serviceIds;
     }
+
+    protected function formatClosure(\Closure $closure)
+    {
+        $r = new \ReflectionFunction($closure);
+
+        if (preg_match('#^/\*\* @closure-proxy ([^: ]++)::([^: ]++) \*/$#', $r->getDocComment(), $m)) {
+            return sprintf('%s::%s', $m[1], $m[2]);
+        }
+
+        return 'closure';
+    }
 }

src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php

@@ -363,7 +363,7 @@ class JsonDescriptor extends Descriptor
         }
 
         if ($callable instanceof \Closure) {
-            $data['type'] = 'closure';
+            $data['type'] = $this->formatClosure($callable);
 
             return $data;
         }

src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/MarkdownDescriptor.php

@@ -343,7 +343,8 @@ class MarkdownDescriptor extends Descriptor
         }
 
         if ($callable instanceof \Closure) {
-            $string .= "\n- Type: `closure`";
+            $formatted = $this->formatClosure($callable);
+            $string .= "\n- Type: `$formatted`";
 
             return $this->write($string."\n");
         }

src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php

@@ -466,7 +466,13 @@ class TextDescriptor extends Descriptor
         }
 
         if ($callable instanceof \Closure) {
-            return '\Closure()';
+            $formatted = $this->formatClosure($callable);
+
+            if ('closure' === $formatted) {
+                return '\Closure()';
+            }
+
+            return $formatted.'()';
         }
 
         if (method_exists($callable, '__invoke')) {

src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php

@@ -593,7 +593,7 @@ class XmlDescriptor extends Descriptor
         }
 
         if ($callable instanceof \Closure) {
-            $callableXML->setAttribute('type', 'closure');
+            $callableXML->setAttribute('type', $this->formatClosure($callable));
 
             return $dom;
         }