Upgrade framework

vendor/symfony/css-selector/Node/NegationNode.php

@@ -23,38 +23,21 @@ namespace Symfony\Component\CssSelector\Node;
  */
 class NegationNode extends AbstractNode
 {
-    /**
-     * @var NodeInterface
-     */
     private $selector;
-
-    /**
-     * @var NodeInterface
-     */
     private $subSelector;
 
-    /**
-     * @param NodeInterface $selector
-     * @param NodeInterface $subSelector
-     */
     public function __construct(NodeInterface $selector, NodeInterface $subSelector)
     {
         $this->selector = $selector;
         $this->subSelector = $subSelector;
     }
 
-    /**
-     * @return NodeInterface
-     */
-    public function getSelector()
+    public function getSelector(): NodeInterface
     {
         return $this->selector;
     }
 
-    /**
-     * @return NodeInterface
-     */
-    public function getSubSelector()
+    public function getSubSelector(): NodeInterface
     {
         return $this->subSelector;
     }
@@ -62,15 +45,12 @@ class NegationNode extends AbstractNode
     /**
      * {@inheritdoc}
      */
-    public function getSpecificity()
+    public function getSpecificity(): Specificity
     {
         return $this->selector->getSpecificity()->plus($this->subSelector->getSpecificity());
     }
 
-    /**
-     * {@inheritdoc}
-     */
-    public function __toString()
+    public function __toString(): string
     {
         return sprintf('%s[%s:not(%s)]', $this->getNodeName(), $this->selector, $this->subSelector);
     }