Merge branch '3.4'

* 3.4: (33 commits)
  Remove remaining `@experimental` annotations
  Tests and fix for issue in array model data in EntityType field with multiple=true
  [Validator] Add unique entity violation cause
  [Lock] Automaticaly release lock when user forget it
  [Form] Fixed PercentToLocalizedStringTransformer to accept both comma and dot as decimal separator, if possible
  fixed CS
  [FrameworkBundle] Don't clear app pools on cache:clear
  Hide label button when its setted to false
  removed useless PHPDoc
  [HttpFoundation] Return instance in StreamedResponse
  [Form] Fix FormInterface::submit() annotation
  [PHPUnitBridge] don't remove when set to  empty string
  PdoSessionHandler: fix advisory lock for pgsql when session.sid_bits_per_character > 4
  HttpCache does not consider ESI resources in HEAD requests
  Fix translation for "This field was not expected"
  [Routing] Enhance Route(Collection) docblocks
  Added improvement for accuracy in MoneyToLocalizedStringTransformer.
  Removed unused private property
  Use correct verb form in the pull request template
  Use PHP_MAXPATHLEN in Filesystem.
  ...

Author: nicolas-grekas

Parser/Parser.php

@@ -33,8 +33,6 @@ class Parser implements ParserInterface
     private $tokenizer;
 
     /**
-     * Constructor.
-     *
      * @param null|Tokenizer $tokenizer
      */
     public function __construct(Tokenizer $tokenizer = null)

Parser/Tokenizer/Tokenizer.php

@@ -33,9 +33,6 @@ class Tokenizer
      */
     private $handlers;
 
-    /**
-     * Constructor.
-     */
     public function __construct()
     {
         $patterns = new TokenizerPatterns();

Parser/Tokenizer/TokenizerPatterns.php

@@ -83,9 +83,6 @@ class TokenizerPatterns
      */
     private $quotedStringPattern;
 
-    /**
-     * Constructor.
-     */
     public function __construct()
     {
         $this->unicodeEscapePattern = '\\\\([0-9a-f]{1,6})(?:\r\n|[ \n\r\t\f])?';

XPath/Extension/HtmlExtension.php

@@ -29,8 +29,6 @@
 class HtmlExtension extends AbstractExtension
 {
     /**
-     * Constructor.
-     *
      * @param Translator $translator
      */
     public function __construct(Translator $translator)

XPath/Extension/NodeExtension.php

@@ -37,8 +37,6 @@ class NodeExtension extends AbstractExtension
     private $flags;
 
     /**
-     * Constructor.
-     *
      * @param int $flags
      */
     public function __construct($flags = 0)