Merge branch '2.3' into 2.6

* 2.3:
  [Validator] Add missing pt_BR translations
  Add parsing of hexadecimal strings for PHP 7
  [Configuration] improve description for ignoreExtraKeys on ArrayNodeDefinition
  [Validator] Added missing Hungarian translation
  [Validator] Fixed grammar in Hungarian translation
  CS: Unary operators should be placed adjacent to their operands
  CS: Binary operators should be arounded by at least one space
  remove useless tests that fail in php 7
  [Translator] fix test for php 7 compatibility
  Update phpdoc of ProcessBuilder#setPrefix()

Conflicts:
	src/Symfony/Component/HttpFoundation/Session/Attribute/NamespacedAttributeBag.php
	src/Symfony/Component/PropertyAccess/PropertyAccessor.php
	src/Symfony/Component/Validator/Resources/translations/validators.pt_BR.xlf
	src/Symfony/Component/Yaml/Parser.php

Author: fabpot

Authentication/Token/AbstractToken.php

@@ -231,7 +231,7 @@ public function setAttribute($name, $value)
     public function __toString()
     {
         $class = get_class($this);
-        $class = substr($class, strrpos($class, '\\')+1);
+        $class = substr($class, strrpos($class, '\\') + 1);
 
         $roles = array();
         foreach ($this->roles as $role) {
@@ -248,7 +248,7 @@ private function hasUserChanged(UserInterface $user)
         }
 
         if ($this->user instanceof EquatableInterface) {
-            return ! (bool) $this->user->isEqualTo($user);
+            return !(bool) $this->user->isEqualTo($user);
         }
 
         if ($this->user->getPassword() !== $user->getPassword()) {

Tests/Authentication/Token/RememberMeTokenTest.php

@@ -52,23 +52,6 @@ public function testConstructorKeyCannotBeEmptyString()
         );
     }
 
-    /**
-     * @expectedException \PHPUnit_Framework_Error
-     * @dataProvider getUserArguments
-     */
-    public function testConstructorUserCannotBeNull($user)
-    {
-        new RememberMeToken($user, 'foo', 'foo');
-    }
-
-    public function getUserArguments()
-    {
-        return array(
-            array(null),
-            array('foo'),
-        );
-    }
-
     protected function getUser($roles = array('ROLE_FOO'))
     {
         $user = $this->getMock('Symfony\Component\Security\Core\User\UserInterface');

Tests/Util/SecureRandomTest.php

@@ -49,7 +49,7 @@ public function testPoker($secureRandom)
             $f += $c[$i] * $c[$i];
         }
 
-        $Y = 16/5000 * $f - 5000;
+        $Y = 16 / 5000 * $f - 5000;
 
         $this->assertTrue($Y > 1.03 && $Y < 57.4, 'Poker test failed, Y = '.$Y);
     }