Merge branch '2.7' into 2.8

* 2.7:
  Added 'default' color
  [HttpFoundation] Reload the session after regenerating its id
  [HttpFoundation] Add a test case to confirm a bug in session migration
  [Serializer] Fix ClassMetadata::sleep()
  [2.6] Static Code Analysis for Components and Bundles
  [Finder] Command::addAtIndex() fails with Command instance argument
  [DependencyInjection] Freeze also FrozenParameterBag::remove
  [Twig][Bridge] replaced `extends` with `use` in bootstrap_3_horizontal_layout.html.twig
  fix CS
  fixed CS
  Add a way to reset the singleton
  [Security] allow to use `method` in XML configs
  [Serializer] Fix Groups tests.
  Remove duplicate example
  Remove var not used due to returning early (introduced in 8982c32)
  [Serializer] Fix Groups PHPDoc
  Enhance hhvm test skip message
  fix for legacy asset() with EmptyVersionStrategy
  [Form] Added upgrade notes for #15061

Author: fabpot

PreloadedExtension.php

@@ -38,9 +38,9 @@ class PreloadedExtension implements FormExtensionInterface
     /**
      * Creates a new preloaded extension.
      *
-     * @param FormTypeInterface[]           $types       The types that the extension should support.
-     * @param array[FormTypeExtensionInterface[]] typeExtensions The type extensions that the extension should support.
-     * @param FormTypeGuesserInterface|null $typeGuesser The guesser that the extension should support.
+     * @param FormTypeInterface[]                 $types          The types that the extension should support.
+     * @param array[FormTypeExtensionInterface[]] $typeExtensions The type extensions that the extension should support.
+     * @param FormTypeGuesserInterface|null       $typeGuesser    The guesser that the extension should support.
      */
     public function __construct(array $types, array $typeExtensions, FormTypeGuesserInterface $typeGuesser = null)
     {