Issue #3516147 by dydave: PHPSTAN: Raised validation level from 0 (min) to 9 (max).

https://www.drupal.org/project/image_link_formatter/issues/3516147

PHPSTAN: Raised validation level from 0 (min) to 9 (max).

Fixed all validation errors, mostly:

• Updated Doc comment blocks return types.
• Updated Doc comment blocks param types.
• Added inline @var types definitions.
• Changed a single line of code, to add a null coalescing operator.

responsive_image_link_formatter/src/Plugin/Field/FieldFormatter/ResponsiveImageLinkFormatter.php

@@ -50,13 +50,13 @@ class ResponsiveImageLinkFormatter extends ResponsiveImageFormatter implements C
    *   The plugin implementation definition.
    * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
    *   The definition of the field to which the formatter is associated.
-   * @param array $settings
+   * @param array<mixed> $settings
    *   The formatter settings.
    * @param string $label
    *   The formatter label display setting.
    * @param string $view_mode
    *   The view mode.
-   * @param array $third_party_settings
+   * @param array<mixed> $third_party_settings
    *   Any third party settings.
    * @param \Drupal\Core\Entity\EntityStorageInterface $responsive_image_style_storage
    *   The responsive image style storage.
@@ -75,9 +75,19 @@ class ResponsiveImageLinkFormatter extends ResponsiveImageFormatter implements C
   }
 
   /**
-   * {@inheritdoc}
-   *
    * Adds the 'entity_field.manager' service to parent's container.
+   *
+   * @param \Symfony\Component\DependencyInjection\ContainerInterface $container
+   *   The container to pull out services used in the plugin.
+   * @param array{field_definition: \Drupal\Core\Field\FieldDefinitionInterface, settings: array<string>, label: string, view_mode: string, third_party_settings: array<string>} $configuration
+   *   The configuration array containing information about the plugin instance.
+   * @param string $plugin_id
+   *   The plugin ID for the plugin instance.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   *
+   * @return static
+   *   Returns an instance of this plugin.
    */
   public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
     return new static(