fixed types in phpdocs
Merge branch '2.3' into 2.4

* 2.3:
  fixed types in phpdocs

Conflicts:
	src/Symfony/Bridge/Twig/TwigEngine.php
	src/Symfony/Bundle/FrameworkBundle/Templating/Loader/FilesystemLoader.php
	src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
	src/Symfony/Component/Form/Extension/Core/ChoiceList/SimpleChoiceList.php
	src/Symfony/Component/HttpKernel/Controller/ControllerResolver.php
	src/Symfony/Component/HttpKernel/Controller/ControllerResolverInterface.php
	src/Symfony/Component/PropertyAccess/PropertyAccessorBuilder.php
	src/Symfony/Component/Serializer/Encoder/XmlEncoder.php
	src/Symfony/Component/Stopwatch/StopwatchEvent.php
	src/Symfony/Component/Templating/PhpEngine.php