Updating Symfony lib and dependencies:

Package operations: 2 installs, 23 updates, 0 removals
  - Updating psr/log (1.1.0 => 1.1.2)
  - Updating symfony/debug (v3.4.30 => v3.4.35)
  - Updating symfony/console (v3.4.30 => v3.4.35)
  - Updating symfony/dotenv (v3.4.30 => v3.4.35)
  - Updating symfony/routing (v3.4.30 => v3.4.35)
  - Updating symfony/finder (v3.4.30 => v3.4.35)
  - Updating symfony/filesystem (v3.4.30 => v3.4.35)
  - Installing symfony/polyfill-util (v1.12.0)
  - Installing symfony/polyfill-php56 (v1.12.0)
  - Updating symfony/http-foundation (v3.4.30 => v3.4.35)
  - Updating symfony/event-dispatcher (v3.4.30 => v3.4.35)
  - Updating symfony/http-kernel (v3.4.30 => v3.4.35)
  - Updating symfony/config (v3.4.30 => v3.4.35)
  - Updating symfony/dependency-injection (v3.4.30 => v3.4.35)
  - Updating symfony/class-loader (v3.4.30 => v3.4.35)
  - Updating symfony/cache (v3.4.30 => v3.4.35)
  - Updating symfony/framework-bundle (v3.4.30 => v3.4.35)
  - Updating twig/twig (v1.42.2 => v1.42.4)
  - Updating symfony/twig-bridge (v3.4.30 => v3.4.35)
  - Updating symfony/twig-bundle (v3.4.30 => v3.4.35)
  - Updating symfony/yaml (v3.4.30 => v3.4.35)
  - Updating symfony/stopwatch (v3.4.30 => v3.4.35)
  - Updating symfony/var-dumper (v3.4.30 => v3.4.35)
  - Updating symfony/web-profiler-bundle (v3.4.30 => v3.4.35)
  - Updating symfony/css-selector (v3.4.30 => v3.4.35)

lib/symfony/config/Definition/ArrayNode.php

@@ -38,17 +38,13 @@ class ArrayNode extends BaseNode implements PrototypeNodeInterface
     }
 
     /**
-     * Normalizes keys between the different configuration formats.
+     * {@inheritdoc}
      *
      * Namely, you mostly have foo_bar in YAML while you have foo-bar in XML.
      * After running this method, all keys are normalized to foo_bar.
      *
      * If you have a mixed key like foo-bar_moo, it will not be altered.
      * The key will also not be altered if the target key already exists.
-     *
-     * @param mixed $value
-     *
-     * @return array The value with normalized keys
      */
     protected function preNormalize($value)
     {

lib/symfony/config/Definition/BaseNode.php

@@ -49,21 +49,37 @@ abstract class BaseNode implements NodeInterface
         $this->parent = $parent;
     }
 
+    /**
+     * @param string $key
+     */
     public function setAttribute($key, $value)
     {
         $this->attributes[$key] = $value;
     }
 
+    /**
+     * @param string $key
+     *
+     * @return mixed
+     */
     public function getAttribute($key, $default = null)
     {
         return isset($this->attributes[$key]) ? $this->attributes[$key] : $default;
     }
 
+    /**
+     * @param string $key
+     *
+     * @return bool
+     */
     public function hasAttribute($key)
     {
         return isset($this->attributes[$key]);
     }
 
+    /**
+     * @return array
+     */
     public function getAttributes()
     {
         return $this->attributes;
@@ -74,6 +90,9 @@ abstract class BaseNode implements NodeInterface
         $this->attributes = $attributes;
     }
 
+    /**
+     * @param string $key
+     */
     public function removeAttribute($key)
     {
         unset($this->attributes[$key]);
@@ -92,7 +111,7 @@ abstract class BaseNode implements NodeInterface
     /**
      * Returns info message.
      *
-     * @return string The info text
+     * @return string|null The info text
      */
     public function getInfo()
     {
@@ -112,7 +131,7 @@ abstract class BaseNode implements NodeInterface
     /**
      * Retrieves the example configuration for this node.
      *
-     * @return string|array The example
+     * @return string|array|null The example
      */
     public function getExample()
     {
@@ -280,9 +299,9 @@ abstract class BaseNode implements NodeInterface
     /**
      * Normalizes the value before any other normalization is applied.
      *
-     * @param $value
+     * @param mixed $value
      *
-     * @return The normalized array value
+     * @return mixed The normalized array value
      */
     protected function preNormalize($value)
     {

lib/symfony/config/Definition/Dumper/XmlReferenceDumper.php

@@ -42,10 +42,9 @@ class XmlReferenceDumper
     }
 
     /**
-     * @param NodeInterface $node
-     * @param int           $depth
-     * @param bool          $root      If the node is the root node
-     * @param string        $namespace The namespace of the node
+     * @param int    $depth
+     * @param bool   $root      If the node is the root node
+     * @param string $namespace The namespace of the node
      */
     private function writeNode(NodeInterface $node, $depth = 0, $root = false, $namespace = null)
     {
@@ -307,5 +306,7 @@ class XmlReferenceDumper
         if (\is_array($value)) {
             return implode(',', $value);
         }
+
+        return '';
     }
 }

lib/symfony/config/Definition/Dumper/YamlReferenceDumper.php

@@ -70,10 +70,8 @@ class YamlReferenceDumper
     }
 
     /**
-     * @param NodeInterface      $node
-     * @param NodeInterface|null $parentNode
-     * @param int                $depth
-     * @param bool               $prototypedArray
+     * @param int  $depth
+     * @param bool $prototypedArray
      */
     private function writeNode(NodeInterface $node, NodeInterface $parentNode = null, $depth = 0, $prototypedArray = false)
     {
@@ -215,8 +213,6 @@ class YamlReferenceDumper
     }
 
     /**
-     * @param PrototypedArrayNode $node
-     *
      * @return array
      */
     private function getPrototypeChildren(PrototypedArrayNode $node)

lib/symfony/config/Definition/PrototypedArrayNode.php

@@ -78,7 +78,7 @@ class PrototypedArrayNode extends ArrayNode
     /**
      * Retrieves the name of the attribute which value should be used as key.
      *
-     * @return string The name of the attribute
+     * @return string|null The name of the attribute
      */
     public function getKeyAttribute()
     {