Expanded class hierarchy of IconProviderInterface in Icon API 8
- interface \Drupal\Core\Plugin\ContainerFactoryPluginInterface; interface \Drupal\Component\Plugin\DerivativeInspectionInterface; interface \Drupal\Component\Plugin\PluginInspectionInterface
- interface \Drupal\icon\Plugin\Icon\IconProviderInterface extends \Symfony\Component\DependencyInjection\ContainerAwareInterface