14 files declare their use of AnonymousUserSession in Zircon Profile 8

AnonymousUserSessionTest.php in core/tests/Drupal/Tests/Core/Session/AnonymousUserSessionTest.php

Contains \Drupal\Tests\Core\Session\AnonymousUserSessionTest.

BrowserTestBase.php in core/modules/simpletest/src/BrowserTestBase.php

Contains \Drupal\simpletest\BrowserTestBase.

CommentFieldAccessTest.php in core/modules/comment/src/Tests/CommentFieldAccessTest.php

Contains \Drupal\comment\Tests\CommentFieldAccessTest.

CommentFieldNameTest.php in core/modules/comment/src/Tests/Views/CommentFieldNameTest.php

Contains \Drupal\comment\Tests\Views\CommentFieldNameTest.

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

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

CommentLinksTest.php in core/modules/comment/src/Tests/Views/CommentLinksTest.php

Contains \Drupal\comment\Tests\Views\CommentLinksTest.

CommentUserNameTest.php in core/modules/comment/src/Tests/Views/CommentUserNameTest.php

Contains \Drupal\comment\Tests\Views\CommentUserNameTest.

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

Contains \Drupal\Core\Cron.

DisplayPageTest.php in core/modules/views/src/Tests/Plugin/DisplayPageTest.php

Contains \Drupal\views\Tests\Plugin\DisplayPageTest.

FilterAPITest.php in core/modules/filter/src/Tests/FilterAPITest.php

Contains \Drupal\filter\Tests\FilterAPITest.

FormCacheTest.php in core/modules/system/src/Tests/Form/FormCacheTest.php

Contains \Drupal\system\Tests\Form\FormCacheTest.

UpdateKernel.php in core/lib/Drupal/Core/Update/UpdateKernel.php

Contains \Drupal\Core\Update\UpdateKernel.

user.module in core/modules/user/user.module

Enables the user registration and login system.

WebTestBase.php in core/modules/simpletest/src/WebTestBase.php

Contains \Drupal\simpletest\WebTestBase.