Merge branch '3.3' into 3.4

* 3.3:
  [Serializer] Fix extra attributes when no group specified
  [Intl] Make intl-data tests pass and save language aliases again
  [Console] Fix CommandTester::setInputs() docblock
  [Serializer] readd default argument value
  [VarDumper] fix trailling comma when dumping an exception
  Remove useless docblocks
  [FrameworkBundle] Fix docblocks
  [PropertyInfo] Remove useless docblocks

Author: nicolas-grekas

Matcher/Dumper/DumperRoute.php

@@ -22,14 +22,7 @@
  */
 class DumperRoute
 {
-    /**
-     * @var string
-     */
     private $name;
-
-    /**
-     * @var Route
-     */
     private $route;
 
     /**