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

Tests/Iterator/MockSplFileInfo.php

@@ -13,9 +13,9 @@
 
 class MockSplFileInfo extends \SplFileInfo
 {
-    const   TYPE_DIRECTORY = 1;
-    const   TYPE_FILE = 2;
-    const   TYPE_UNKNOWN = 3;
+    const TYPE_DIRECTORY = 1;
+    const TYPE_FILE = 2;
+    const TYPE_UNKNOWN = 3;
 
     private $contents = null;
     private $mode = null;