14 files declare their use of UrlGeneratorTrait in Zircon Profile 8

AccessDeniedSubscriber.php in core/modules/user/src/EventSubscriber/AccessDeniedSubscriber.php

Contains \Drupal\user\EventSubscriber\AccessDeniedSubscriber.

BlockContentAddLocalAction.php in core/modules/block_content/src/Plugin/Menu/LocalAction/BlockContentAddLocalAction.php

Contains \Drupal\block_content\Plugin\Menu\LocalAction\BlockContentAddLocalAction.

CommentItem.php in core/modules/comment/src/Plugin/Field/FieldType/CommentItem.php

Contains \Drupal\comment\Plugin\Field\FieldType\CommentItem.

CommentManager.php in core/modules/comment/src/CommentManager.php

Contains \Drupal\comment\CommentManager.

ControllerBase.php in core/lib/Drupal/Core/Controller/ControllerBase.php

Contains \Drupal\Core\Controller\ControllerBase.

DefaultProcessor.php in core/modules/aggregator/src/Plugin/aggregator/processor/DefaultProcessor.php

Contains \Drupal\aggregator\Plugin\aggregator\processor\DefaultProcessor.

FormBase.php in core/lib/Drupal/Core/Form/FormBase.php

Contains \Drupal\Core\Form\FormBase.

MaintenanceModeSubscriber.php in core/modules/user/src/EventSubscriber/MaintenanceModeSubscriber.php

Contains \Drupal\user\EventSubscriber\MaintenanceModeSubscriber.

NodePermissions.php in core/modules/node/src/NodePermissions.php

Contains \Drupal\node\NodePermissions.

PathPluginBase.php in core/modules/views/src/Plugin/views/display/PathPluginBase.php

Contains \Drupal\views\Plugin\views\display\PathPluginBase.

PrivateStream.php in core/lib/Drupal/Core/StreamWrapper/PrivateStream.php

Contains \Drupal\Core\StreamWrapper\PrivateStream.

SearchExtraTypeSearch.php in core/modules/search/tests/modules/search_extra_type/src/Plugin/Search/SearchExtraTypeSearch.php

Contains \Drupal\search_extra_type\Plugin\Search\SearchExtraTypeSearch.

UserLoginBlock.php in core/modules/user/src/Plugin/Block/UserLoginBlock.php

Contains \Drupal\user\Plugin\Block\UserLoginBlock.

WizardPluginBase.php in core/modules/views/src/Plugin/views/wizard/WizardPluginBase.php

Contains \Drupal\views\Plugin\views\wizard\WizardPluginBase.