42 files declare their use of CommentItemInterface

comment.module in core/modules/comment/comment.module
Enables users to comment on published content.
CommentAccessControlHandler.php in core/modules/comment/src/CommentAccessControlHandler.php
CommentAdminTest.php in core/modules/comment/tests/src/Functional/Views/CommentAdminTest.php
CommentBaseFieldTest.php in core/modules/comment/tests/src/Kernel/CommentBaseFieldTest.php
CommentController.php in core/modules/comment/src/Controller/CommentController.php
CommentDefaultFormatter.php in core/modules/comment/src/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php
CommentEntityTest.php in core/modules/comment/tests/src/Functional/CommentEntityTest.php
CommentFieldAccessTest.php in core/modules/comment/tests/src/Kernel/CommentFieldAccessTest.php
CommentFieldsTest.php in core/modules/comment/tests/src/Functional/CommentFieldsTest.php
CommentForm.php in core/modules/comment/src/CommentForm.php
CommentInterfaceTest.php in core/modules/comment/tests/src/Functional/CommentInterfaceTest.php
CommentItemTest.php in core/modules/comment/tests/src/Kernel/CommentItemTest.php
CommentLanguageTest.php in core/modules/comment/tests/src/Functional/CommentLanguageTest.php
CommentLazyBuilders.php in core/modules/comment/src/CommentLazyBuilders.php
CommentLinkBuilder.php in core/modules/comment/src/CommentLinkBuilder.php
CommentLinkBuilderTest.php in core/modules/comment/tests/src/Unit/CommentLinkBuilderTest.php
CommentLinksTest.php in core/modules/comment/tests/src/Functional/CommentLinksTest.php
CommentManager.php in core/modules/comment/src/CommentManager.php
CommentNonNodeTest.php in core/modules/comment/tests/src/Functional/CommentNonNodeTest.php
CommentResourceTestBase.php in core/modules/comment/tests/src/Functional/Rest/CommentResourceTestBase.php
CommentRssTest.php in core/modules/comment/tests/src/Functional/CommentRssTest.php
CommentTest.php in core/modules/jsonapi/tests/src/Functional/CommentTest.php
CommentTestBase.php in core/modules/comment/tests/src/Functional/CommentTestBase.php
CommentTestBaseField.php in core/modules/comment/tests/modules/comment_base_field_test/src/Entity/CommentTestBaseField.php
CommentTestTrait.php in core/modules/comment/src/Tests/CommentTestTrait.php
CommentTokenReplaceTest.php in core/modules/comment/tests/src/Functional/CommentTokenReplaceTest.php
CommentTranslationUITest.php in core/modules/comment/tests/src/Functional/CommentTranslationUITest.php
CommentTypeTest.php in core/modules/comment/tests/src/Functional/CommentTypeTest.php
CommentWidget.php in core/modules/comment/src/Plugin/Field/FieldWidget/CommentWidget.php
ContentTranslationSettingsTest.php in core/modules/content_translation/tests/src/Functional/ContentTranslationSettingsTest.php
EntityCrudHookTest.php in core/tests/Drupal/KernelTests/Core/Entity/EntityCrudHookTest.php
EntityFilteringThemeTest.php in core/modules/system/tests/src/Functional/Theme/EntityFilteringThemeTest.php
forum.module in core/modules/forum/forum.module
Provides discussion forums.
JsonApiFilterRegressionTest.php in core/modules/jsonapi/tests/src/Functional/JsonApiFilterRegressionTest.php
JsonApiPatchRegressionTest.php in core/modules/jsonapi/tests/src/Functional/JsonApiPatchRegressionTest.php
JsonApiRegressionTest.php in core/modules/jsonapi/tests/src/Functional/JsonApiRegressionTest.php
MigrateNodeTest.php in core/modules/node/tests/src/Kernel/Migrate/d7/MigrateNodeTest.php
NodeComment.php in core/modules/comment/src/Plugin/views/filter/NodeComment.php
SearchCommentCountToggleTest.php in core/modules/search/tests/src/Functional/SearchCommentCountToggleTest.php
SearchCommentTest.php in core/modules/search/tests/src/Functional/SearchCommentTest.php
SearchRankingTest.php in core/modules/search/tests/src/Functional/SearchRankingTest.php
TrackerNodeAccessTest.php in core/modules/tracker/tests/src/Functional/TrackerNodeAccessTest.php

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