17 files declare their use of AccessManagerInterface

AccessAwareRouter.php in core/lib/Drupal/Core/Routing/AccessAwareRouter.php
ConfigTranslationController.php in core/modules/config_translation/src/Controller/ConfigTranslationController.php
ContextualLinkManager.php in core/lib/Drupal/Core/Menu/ContextualLinkManager.php
CustomPageExceptionHtmlSubscriber.php in core/lib/Drupal/Core/EventSubscriber/CustomPageExceptionHtmlSubscriber.php
DefaultMenuLinkTreeManipulators.php in core/lib/Drupal/Core/Menu/DefaultMenuLinkTreeManipulators.php
HelpTwigExtension.php in core/modules/help_topics/src/HelpTwigExtension.php
LinkBase.php in core/modules/views/src/Plugin/views/field/LinkBase.php
ListingEmpty.php in core/modules/node/src/Plugin/views/area/ListingEmpty.php
ListingEmpty.php in core/modules/block_content/src/Plugin/views/area/ListingEmpty.php
LocalActionManager.php in core/lib/Drupal/Core/Menu/LocalActionManager.php
LocalActionManagerTest.php in core/tests/Drupal/Tests/Core/Menu/LocalActionManagerTest.php
Contains \Drupal\Tests\Core\Menu\LocalActionManagerTest.
LocalTaskManager.php in core/lib/Drupal/Core/Menu/LocalTaskManager.php
MenuLinkContentAccessControlHandler.php in core/modules/menu_link_content/src/MenuLinkContentAccessControlHandler.php
MenuLinkContentEntityAccessTest.php in core/modules/menu_link_content/tests/src/Unit/MenuLinkContentEntityAccessTest.php
ModulesListForm.php in core/modules/system/src/Form/ModulesListForm.php
PathBasedBreadcrumbBuilder.php in core/modules/system/src/PathBasedBreadcrumbBuilder.php
UrlTest.php in core/tests/Drupal/Tests/Core/UrlTest.php
Contains \Drupal\Tests\Core\UrlTest.

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.