19 files declare their use of CacheTagsInvalidatorInterface

CacheBackendDecorator.php in core/modules/system/tests/modules/performance_test/src/Cache/CacheBackendDecorator.php
CacheTagsChecksumDecorator.php in core/modules/system/tests/modules/performance_test/src/Cache/CacheTagsChecksumDecorator.php
CacheTagsInvalidatorTest.php in core/tests/Drupal/Tests/Core/Cache/CacheTagsInvalidatorTest.php
CKEditor5CacheTag.php in core/modules/ckeditor5/src/EventSubscriber/CKEditor5CacheTag.php
ConfigCacheTag.php in core/modules/system/src/EventSubscriber/ConfigCacheTag.php
ConfigEntityStorageTest.php in core/tests/Drupal/Tests/Core/Config/Entity/ConfigEntityStorageTest.php
EntityFieldManagerTest.php in core/tests/Drupal/Tests/Core/Entity/EntityFieldManagerTest.php
EntityTypeBundleInfoTest.php in core/tests/Drupal/Tests/Core/Entity/EntityTypeBundleInfoTest.php
ExtraFieldBlockCacheTagInvalidator.php in core/modules/layout_builder/src/Cache/ExtraFieldBlockCacheTagInvalidator.php
Fast404ExceptionHtmlSubscriber.php in core/lib/Drupal/Core/EventSubscriber/Fast404ExceptionHtmlSubscriber.php
LocaleTranslationCacheTag.php in core/modules/locale/src/EventSubscriber/LocaleTranslationCacheTag.php
MediaConfigSubscriber.php in core/modules/media/src/EventSubscriber/MediaConfigSubscriber.php
MemoryCacheInterface.php in core/lib/Drupal/Core/Cache/MemoryCache/MemoryCacheInterface.php
MenuTreeStorage.php in core/lib/Drupal/Core/Menu/MenuTreeStorage.php
RouteProvider.php in core/lib/Drupal/Core/Routing/RouteProvider.php
SearchIndex.php in core/modules/search/src/SearchIndex.php
Token.php in core/lib/Drupal/Core/Utility/Token.php
UnitTestCase.php in core/tests/Drupal/Tests/UnitTestCase.php
WorkspacesMenuTreeStorage.php in core/modules/workspaces/src/WorkspacesMenuTreeStorage.php

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