Update to Drupal 8.2.6. For more information, see https://www.drupal.org/project/drupal/releases/8.2.6

vendor/symfony/css-selector/Parser/Parser.php

@@ -58,9 +58,9 @@ class Parser implements ParserInterface
      *
      * @param Token[] $tokens
      *
-     * @throws SyntaxErrorException
-     *
      * @return array
+     *
+     * @throws SyntaxErrorException
      */
     public static function parseSeries(array $tokens)
     {
@@ -133,9 +133,9 @@ class Parser implements ParserInterface
      *
      * @param TokenStream $stream
      *
-     * @throws SyntaxErrorException
-     *
      * @return Node\SelectorNode
+     *
+     * @throws SyntaxErrorException
      */
     private function parserSelectorNode(TokenStream $stream)
     {
@@ -173,9 +173,9 @@ class Parser implements ParserInterface
      * @param TokenStream $stream
      * @param bool        $insideNegation
      *
-     * @throws SyntaxErrorException
-     *
      * @return array
+     *
+     * @throws SyntaxErrorException
      */
     private function parseSimpleSelector(TokenStream $stream, $insideNegation = false)
     {
@@ -330,9 +330,9 @@ class Parser implements ParserInterface
      * @param Node\NodeInterface $selector
      * @param TokenStream        $stream
      *
-     * @throws SyntaxErrorException
-     *
      * @return Node\AttributeNode
+     *
+     * @throws SyntaxErrorException
      */
     private function parseAttributeNode(Node\NodeInterface $selector, TokenStream $stream)
     {

vendor/symfony/css-selector/Parser/Reader.php

@@ -118,8 +118,6 @@ class Reader
         $this->position += $length;
     }
 
-    /**
-     */
     public function moveToEnd()
     {
         $this->position = $this->length;

vendor/symfony/css-selector/Parser/TokenStream.php

@@ -61,7 +61,7 @@ class TokenStream
      *
      * @param Token $token
      *
-     * @return TokenStream
+     * @return $this
      */
     public function push(Token $token)
     {
@@ -73,7 +73,7 @@ class TokenStream
     /**
      * Freezes stream.
      *
-     * @return TokenStream
+     * @return $this
      */
     public function freeze()
     {
@@ -85,9 +85,9 @@ class TokenStream
     /**
      * Returns next token.
      *
-     * @throws InternalErrorException If there is no more token
-     *
      * @return Token
+     *
+     * @throws InternalErrorException If there is no more token
      */
     public function getNext()
     {
@@ -133,9 +133,9 @@ class TokenStream
     /**
      * Returns nex identifier token.
      *
-     * @throws SyntaxErrorException If next token is not an identifier
-     *
      * @return string The identifier token value
+     *
+     * @throws SyntaxErrorException If next token is not an identifier
      */
     public function getNextIdentifier()
     {
@@ -151,9 +151,9 @@ class TokenStream
     /**
      * Returns nex identifier or star delimiter token.
      *
-     * @throws SyntaxErrorException If next token is not an identifier or a star delimiter
-     *
      * @return null|string The identifier token value or null if star found
+     *
+     * @throws SyntaxErrorException If next token is not an identifier or a star delimiter
      */
     public function getNextIdentifierOrStar()
     {