[2.7] More docblock fixes

Author: nicolas-grekas

Dumper/GraphvizDumper.php

@@ -54,8 +54,6 @@ class GraphvizDumper extends Dumper
      *  * node.definition: The default options for services that are defined via service definition instances
      *  * node.missing: The default options for missing services
      *
-     * @param array $options An array of options
-     *
      * @return string The dot representation of the service container
      */
     public function dump(array $options = array())

Dumper/PhpDumper.php

@@ -62,7 +62,7 @@ class PhpDumper extends Dumper
     private $expressionLanguageProviders = array();
 
     /**
-     * @var \Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface
+     * @var ProxyDumper
      */
     private $proxyDumper;
 

Variable.php

@@ -36,11 +36,6 @@ public function __construct($name)
         $this->name = $name;
     }
 
-    /**
-     * Converts the object to a string.
-     *
-     * @return string
-     */
     public function __toString()
     {
         return $this->name;