17 files declare their use of MenuTreeParameters in Zircon Profile 8

AdminTest.php in core/modules/system/src/Tests/System/AdminTest.php

Contains \Drupal\system\Tests\System\AdminTest.

admin_toolbar.module in modules/admin_toolbar/admin_toolbar.module

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

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

DisplayPathTest.php in core/modules/views_ui/src/Tests/DisplayPathTest.php

Contains \Drupal\views_ui\Tests\DisplayPathTest.

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

Contains \Drupal\menu_ui\MenuForm.

MenuLinkContentCacheabilityBubblingTest.php in core/modules/menu_link_content/src/Tests/MenuLinkContentCacheabilityBubblingTest.php

Contains \Drupal\menu_link_content\Tests\MenuLinkContentCacheabilityBubblingTest.

MenuLinkContentDeriverTest.php in core/modules/menu_link_content/src/Tests/MenuLinkContentDeriverTest.php

Contains \Drupal\menu_link_content\Tests\MenuLinkContentDeriverTest.

MenuLinkDefaultIntegrationTest.php in core/modules/system/src/Tests/Menu/MenuLinkDefaultIntegrationTest.php

Contains \Drupal\system\Tests\Menu\MenuLinkDefaultIntegrationTest.

MenuLinkTreeTest.php in core/modules/system/src/Tests/Menu/MenuLinkTreeTest.php

Contains \Drupal\system\Tests\Menu\MenuLinkTreeTest.

MenuTreeParametersTest.php in core/tests/Drupal/Tests/Core/Menu/MenuTreeParametersTest.php

Contains \Drupal\Tests\Core\Menu\MenuTreeParametersTest.

MenuTreeStorageTest.php in core/modules/system/src/Tests/Menu/MenuTreeStorageTest.php

Contains \Drupal\system\Tests\Menu\MenuTreeStorageTest.

PathAliasMenuLinkContentTest.php in core/modules/menu_link_content/src/Tests/PathAliasMenuLinkContentTest.php

Contains \Drupal\menu_link_content\Tests\PathAliasMenuLinkContentTest.

system.module in core/modules/system/system.module

Configuration system that lets administrators modify the workings of the site.

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

Contains \Drupal\system\Controller\SystemController.

SystemManager.php in core/modules/system/src/SystemManager.php

Contains \Drupal\system\SystemManager.

TaxonomyMenu.php in modules/taxonomy_menu/src/Controller/TaxonomyMenu.php

Contains Drupal\taxonomy_menu\Controller\TaxonomyMenu.

toolbar.module in core/modules/toolbar/toolbar.module

Administration toolbar for quick access to top level administration items.