Expanded class hierarchy of TestMultipleHttpKernel

class \Symfony\Component\HttpKernel\HttpKernel implements HttpKernelInterface, TerminableInterface
- class \Drupal\Core\HttpKernel
- class \Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel
- class \Symfony\Component\HttpKernel\Tests\HttpCache\TestHttpKernel implements ControllerResolverInterface
- class \Symfony\Component\HttpKernel\Tests\HttpCache\TestMultipleHttpKernel implements ControllerResolverInterface
- class \Symfony\Component\HttpKernel\Tests\TestHttpKernel implements ControllerResolverInterface