Issue #3274105 by e0ipso: Modernize codebase to leverage better typing

grumphp.yml

@@ -8,9 +8,6 @@ grumphp:
     composer: ~
     composer_normalize: ~
     jsonlint: ~
-    git_commit_message:
-      enforce_capitalized_subject: false
-      max_subject_width: 50
     phpcs:
       standard:
         - vendor/drupal/coder/coder_sniffer/Drupal

src/WrappedEntities/WrappedEntityBase.php

@@ -144,7 +144,7 @@ abstract class WrappedEntityBase implements WrappedEntityInterface {
    * @SuppressWarnings(PHPMD.StaticAccess)
    */
   protected function viewBuilder(): EntityViewBuilderInterface {
-    if (!$this->viewBuilder) {
+    if (!isset($this->viewBuilder)) {
       $entity = $this->getEntity()->getEntityTypeId();
       $entity_type_manager = \Drupal::entityTypeManager();
       $this->viewBuilder = $entity_type_manager->getViewBuilder($entity);