Tweak PHPDocs in the extension configuration files

src/Symfony/Bundle/AsseticBundle/DependencyInjection/Configuration.php

@@ -29,7 +29,7 @@ class Configuration
      * @param Boolean $debug    Wether to use the debug mode
      * @param array   $bundles  An array of bundle names
      * 
-     * @return NodeInterface The config tree
+     * @return \Symfony\Component\Config\Definition\ArrayNode The config tree
      */
     public function getConfigTree($debug, array $bundles)
     {

src/Symfony/Bundle/DoctrineBundle/DependencyInjection/Configuration.php

@@ -30,7 +30,8 @@ class Configuration
      * Generates the configuration tree.
      *
      * @param Boolean $kernelDebug
-     * @return \Symfony\Component\Config\Definition\NodeInterface
+     *
+     * @return \Symfony\Component\Config\Definition\ArrayNode The config tree
      */
     public function getConfigTree($kernelDebug)
     {

src/Symfony/Bundle/DoctrineMigrationsBundle/DependencyInjection/Configuration.php

@@ -14,7 +14,7 @@ class Configuration
     /**
      * Generates the configuration tree.
      *
-     * @return NodeInterface
+     * @return \Symfony\Component\Config\Definition\ArrayNode The config tree
      */
     public function getConfigTree()
     {

src/Symfony/Bundle/DoctrineMongoDBBundle/DependencyInjection/Configuration.php

@@ -27,7 +27,7 @@ class Configuration
     /**
      * Generates the configuration tree.
      *
-     * @return NodeInterface
+     * @return \Symfony\Component\Config\Definition\ArrayNode The config tree
      */
     public function getConfigTree()
     {

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php

@@ -16,7 +16,8 @@ class Configuration
      * Generates the configuration tree.
      *
      * @param boolean $kernelDebug The kernel.debug DIC parameter
-     * @return \Symfony\Component\Config\Definition\NodeInterface
+     *
+     * @return \Symfony\Component\Config\Definition\ArrayNode The config tree
      */
     public function getConfigTree($kernelDebug)
     {

src/Symfony/Bundle/SecurityBundle/DependencyInjection/Configuration.php

@@ -18,6 +18,11 @@ use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
  */
 class Configuration
 {
+    /**
+     * Generates the configuration tree.
+     *
+     * @return \Symfony\Component\Config\Definition\ArrayNode The config tree
+     */
     public function getFactoryConfigTree()
     {
         $tb = new TreeBuilder();

src/Symfony/Bundle/TwigBundle/DependencyInjection/Configuration.php

@@ -15,7 +15,7 @@ class Configuration
     /**
      * Generates the configuration tree.
      *
-     * @return \Symfony\Component\Config\Definition\NodeInterface
+     * @return \Symfony\Component\Config\Definition\ArrayNode The config tree
      */
     public function getConfigTree()
     {

src/Symfony/Bundle/ZendBundle/DependencyInjection/Configuration.php

@@ -26,7 +26,7 @@ class Configuration
     /**
      * Generates the configuration tree.
      *
-     * @return NodeInterface
+     * @return \Symfony\Component\Config\Definition\ArrayNode The config tree
      */
     public function getConfigTree()
     {