Issue #3035350 by claudiu.cristea: Remove usages of drupal_static() from field_test.module

core/modules/field/tests/modules/field_test/field_test.entity.inc

@@ -19,7 +19,7 @@ function field_test_entity_type_alter(array &$entity_types) {
  * Helper function to enable entity translations.
  */
 function field_test_entity_info_translatable($entity_type_id = NULL, $translatable = NULL) {
-  $stored_value = &drupal_static(__FUNCTION__, []);
+  static $stored_value = [];
   if (isset($entity_type_id)) {
     $entity_definition_update_manager = \Drupal::entityDefinitionUpdateManager();
     $entity_type = $entity_definition_update_manager->getEntityType($entity_type_id);

core/modules/field/tests/modules/field_test/field_test.module

@@ -63,7 +63,7 @@
  *   for that key.
  */
 function field_test_memorize($key = NULL, $value = NULL) {
-  $memorize = &drupal_static(__FUNCTION__, NULL);
+  static $memorize;
 
   if (!isset($key)) {
     $return = $memorize;