Expanded class hierarchy of AnnotationDirectoryLoaderTest

class \Symfony\Component\Routing\Tests\Loader\AbstractAnnotationLoaderTest extends \Symfony\Component\Routing\Tests\Loader\PHPUnit_Framework_TestCase
- class \Symfony\Component\Routing\Tests\Loader\AnnotationClassLoaderTest
- class \Symfony\Component\Routing\Tests\Loader\AnnotationDirectoryLoaderTest
- class \Symfony\Component\Routing\Tests\Loader\AnnotationFileLoaderTest