21 files declare their use of RefinableCacheableDependencyInterface in Drupal 8

AccessResult.php in core/lib/Drupal/Core/Access/AccessResult.php

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

ConfigBase.php in core/lib/Drupal/Core/Config/ConfigBase.php

CustomPageExceptionHtmlSubscriber.php in core/lib/Drupal/Core/EventSubscriber/CustomPageExceptionHtmlSubscriber.php

DefaultsSectionStorage.php in core/modules/layout_builder/src/Plugin/SectionStorage/DefaultsSectionStorage.php

EntityInterface.php in core/lib/Drupal/Core/Entity/EntityInterface.php

LayoutBuilderAccessCheck.php in core/modules/layout_builder/src/Access/LayoutBuilderAccessCheck.php

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

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

MediaLibraryFieldWidgetOpener.php in core/modules/media_library/src/MediaLibraryFieldWidgetOpener.php

menu_test.module in core/modules/system/tests/modules/menu_test/menu_test.module

Module that implements various hooks for menu tests.

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

OverridesSectionStorage.php in core/modules/layout_builder/src/Plugin/SectionStorage/OverridesSectionStorage.php

PageDisplayVariantSelectionEvent.php in core/lib/Drupal/Core/Render/PageDisplayVariantSelectionEvent.php

SearchPluginBase.php in core/modules/search/src/Plugin/SearchPluginBase.php

SectionStorageInterface.php in core/modules/layout_builder/src/SectionStorageInterface.php

SectionStorageManager.php in core/modules/layout_builder/src/SectionStorage/SectionStorageManager.php

SectionStorageManagerInterface.php in core/modules/layout_builder/src/SectionStorage/SectionStorageManagerInterface.php

SimpleConfigSectionStorage.php in core/modules/layout_builder/tests/modules/layout_builder_test/src/Plugin/SectionStorage/SimpleConfigSectionStorage.php

TestStateBasedSectionStorage.php in core/modules/layout_builder/tests/modules/layout_builder_test/src/Plugin/SectionStorage/TestStateBasedSectionStorage.php

VariantInterface.php in core/lib/Drupal/Core/Display/VariantInterface.php