Merge branch '3.4' into 4.0

* 3.4:
  [HttpFoundation] update phpdoc of FlashBagInterface::add()
  [ProxyManagerBridge] Fix support of private services (bis)
  bug #27701 [SecurityBundle] Dont throw if "security.http_utils" is not found (nicolas-grekas)
  [Form] relax fixtures for forward compat
  [Validator] Fix the namespace of RegexTest
  [Lock] fix locale dependent test case

Author: nicolas-grekas

Session/Flash/FlashBagInterface.php

@@ -24,7 +24,7 @@ interface FlashBagInterface extends SessionBagInterface
      * Adds a flash message for type.
      *
      * @param string $type
-     * @param string $message
+     * @param mixed  $message
      */
     public function add($type, $message);
 

Tests/Session/Flash/FlashBagTest.php

@@ -74,6 +74,18 @@ public function testPeek()
         $this->assertEquals(array('A previous flash message'), $this->bag->peek('notice'));
     }
 
+    public function testAdd()
+    {
+        $tab = array('bar' => 'baz');
+        $this->bag->add('string_message', 'lorem');
+        $this->bag->add('object_message', new \stdClass());
+        $this->bag->add('array_message', $tab);
+
+        $this->assertEquals(array('lorem'), $this->bag->get('string_message'));
+        $this->assertEquals(array(new \stdClass()), $this->bag->get('object_message'));
+        $this->assertEquals(array($tab), $this->bag->get('array_message'));
+    }
+
     public function testGet()
     {
         $this->assertEquals(array(), $this->bag->get('non_existing'));