25 files declare their use of QueryFactory in Zircon Profile 8.0

AccountForm.php in core/modules/user/src/AccountForm.php

Contains \Drupal\user\AccountForm.

BlockContentTypeDeleteForm.php in core/modules/block_content/src/Form/BlockContentTypeDeleteForm.php

Contains \Drupal\block_content\Form\BlockContentTypeDeleteForm.

BookUninstallValidator.php in core/modules/book/src/BookUninstallValidator.php

Contains \Drupal\book\BookUninstallValidator.

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

Contains \Drupal\comment\CommentManager.

CommentTypeDeleteForm.php in core/modules/comment/src/Form/CommentTypeDeleteForm.php

Contains \Drupal\comment\Form\CommentTypeDeleteForm.

ConfigTestForm.php in core/modules/config/tests/config_test/src/ConfigTestForm.php

Contains \Drupal\config_test\ConfigTestForm.

DedupeEntity.php in core/modules/migrate/src/Plugin/migrate/process/DedupeEntity.php

Contains \Drupal\migrate\Plugin\migrate\process\DedupeEntity.

DefaultMenuLinkTreeManipulators.php in core/lib/Drupal/Core/Menu/DefaultMenuLinkTreeManipulators.php

Contains \Drupal\Core\Menu\DefaultMenuLinkTreeManipulators.

EntityComment.php in core/modules/comment/src/Plugin/migrate/destination/EntityComment.php

Contains \Drupal\comment\Plugin\migrate\destination\EntityComment.

EntityDisplayModeFormBase.php in core/modules/field_ui/src/Form/EntityDisplayModeFormBase.php

Contains \Drupal\field_ui\Form\EntityDisplayModeFormBase.

EntityTestController.php in core/modules/system/tests/modules/entity_test/src/Controller/EntityTestController.php

Contains \Drupal\entity_test\Controller\EntityTestController.

Fid.php in core/modules/file/src/Plugin/views/argument/Fid.php

Contains \Drupal\file\Plugin\views\argument\Fid.

FieldStorageAddForm.php in core/modules/field_ui/src/Form/FieldStorageAddForm.php

Contains \Drupal\field_ui\Form\FieldStorageAddForm.

FilterFormatFormBase.php in core/modules/filter/src/FilterFormatFormBase.php

Contains \Drupal\filter\FilterFormatFormBase.

ForumUninstallValidator.php in core/modules/forum/src/ForumUninstallValidator.php

Contains \Drupal\forum\ForumUninstallValidator.

MenuForm.php in core/modules/menu_ui/src/MenuForm.php

Contains \Drupal\menu_ui\MenuForm.

MenuLinkContentDeriver.php in core/modules/menu_link_content/src/Plugin/Deriver/MenuLinkContentDeriver.php

Contains \Drupal\menu_link_content\Plugin\Deriver\MenuLinkContentDeriver.

NodeAccessTestAutoBubblingController.php in core/modules/node/tests/node_access_test_auto_bubbling/src/Controller/NodeAccessTestAutoBubblingController.php

Contains \Drupal\node_access_test_auto_bubbling\Controller\NodeAccessTestAutoBubblingController.

NodeTypeDeleteConfirm.php in core/modules/node/src/Form/NodeTypeDeleteConfirm.php

Contains \Drupal\node\Form\NodeTypeDeleteConfirm.

ProfileForm.php in core/modules/user/src/ProfileForm.php

Contains \Drupal\user\ProfileForm.

RegisterForm.php in core/modules/user/src/RegisterForm.php

Contains \Drupal\user\RegisterForm.

SearchPageFormBase.php in core/modules/search/src/Form/SearchPageFormBase.php

Contains \Drupal\search\Form\SearchPageFormBase.

SystemController.php in core/modules/system/src/Controller/SystemController.php

Contains \Drupal\system\Controller\SystemController.

UserListBuilder.php in core/modules/user/src/UserListBuilder.php

Contains \Drupal\user\UserListBuilder.

ViewsTest.php in core/modules/views/tests/src/Unit/ViewsTest.php

Contains \Drupal\Tests\views\Unit\ViewsTest.