15 files declare their use of ContentLanguageSettings in Zircon Profile 8

BlockContentTypeForm.php in core/modules/block_content/src/BlockContentTypeForm.php

Contains \Drupal\block_content\BlockContentTypeForm.

CommentTypeForm.php in core/modules/comment/src/CommentTypeForm.php

Contains \Drupal\comment\CommentTypeForm.

ContentLanguageSettingsForm.php in core/modules/language/src/Form/ContentLanguageSettingsForm.php

Contains \Drupal\language\Form\ContentLanguageSettingsForm.

ContentLanguageSettingsUnitTest.php in core/modules/language/tests/src/Unit/ContentLanguageSettingsUnitTest.php

Contains \Drupal\Tests\language\Unit\ContentLanguageSettingsUnitTest.

ContentTranslationSettingsTest.php in core/modules/content_translation/src/Tests/ContentTranslationSettingsTest.php

Contains \Drupal\content_translation\Tests\ContentTranslationSettingsTest.

entity.api.php in core/lib/Drupal/Core/Entity/entity.api.php

Hooks and documentation related to entities.

EntityDefaultLanguageTest.php in core/modules/language/src/Tests/EntityDefaultLanguageTest.php

Contains \Drupal\language\Tests\EntityDefaultLanguageTest.

language.module in core/modules/language/language.module

Add language handling functionality to Drupal.

LanguageConfiguration.php in core/modules/language/src/Element/LanguageConfiguration.php

Contains \Drupal\language\Element\LanguageConfiguration.

LanguageConfigurationElement.php in core/modules/language/tests/language_elements_test/src/Form/LanguageConfigurationElement.php

Contains \Drupal\language_elements_test\Form\LanguageConfigurationElement.

LanguageConfigurationElementTest.php in core/modules/language/src/Tests/LanguageConfigurationElementTest.php

Contains \Drupal\language\Tests\LanguageConfigurationElementTest.

MenuLanguageTest.php in core/modules/menu_ui/src/Tests/MenuLanguageTest.php

Contains \Drupal\menu_ui\Tests\MenuLanguageTest.

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

Contains \Drupal\node\NodeTypeForm.

VocabularyForm.php in core/modules/taxonomy/src/VocabularyForm.php

Contains \Drupal\taxonomy\VocabularyForm.

VocabularyLanguageTest.php in core/modules/taxonomy/src/Tests/VocabularyLanguageTest.php

Contains \Drupal\taxonomy\Tests\VocabularyLanguageTest.