7 files declare their use of RefinableCacheableDependencyTrait in Zircon Profile 8

AccessResult.php in core/lib/Drupal/Core/Access/AccessResult.php

Contains \Drupal\Core\Access\AccessResult.

Breadcrumb.php in core/lib/Drupal/Core/Breadcrumb/Breadcrumb.php

Contains \Drupal\Core\Breadcrumb\Breadcrumb.

ConfigBase.php in core/lib/Drupal/Core/Config/ConfigBase.php

Contains \Drupal\Core\Config\ConfigBase.

Entity.php in core/lib/Drupal/Core/Entity/Entity.php

Contains \Drupal\Core\Entity\Entity.

PageDisplayVariantSelectionEvent.php in core/lib/Drupal/Core/Render/PageDisplayVariantSelectionEvent.php

Contains \Drupal\Core\Render\PageDisplayVariantSelectionEvent.

SearchPluginBase.php in core/modules/search/src/Plugin/SearchPluginBase.php

Contains \Drupal\search\Plugin\SearchPluginBase.

VariantBase.php in core/lib/Drupal/Core/Display/VariantBase.php

Contains \Drupal\Core\Display\VariantBase.