21 files declare their use of KeyValueFactoryInterface

CheckpointStorage.php in core/lib/Drupal/Core/Config/Checkpoint/CheckpointStorage.php
DevelopmentSettingsForm.php in core/modules/system/src/Form/DevelopmentSettingsForm.php
EntityFieldManager.php in core/lib/Drupal/Core/Entity/EntityFieldManager.php
EntityFieldManagerTest.php in core/tests/Drupal/Tests/Core/Entity/EntityFieldManagerTest.php
EntityLastInstalledSchemaRepository.php in core/lib/Drupal/Core/Entity/EntityLastInstalledSchemaRepository.php
FieldDefinitionListener.php in core/lib/Drupal/Core/Field/FieldDefinitionListener.php
FieldDefinitionListenerTest.php in core/tests/Drupal/Tests/Core/Field/FieldDefinitionListenerTest.php
LocaleProjectStorage.php in core/modules/locale/src/LocaleProjectStorage.php
MigrateSourceTest.php in core/modules/migrate/tests/src/Unit/MigrateSourceTest.php
NodeTranslationExceptionSubscriber.php in core/modules/node/src/EventSubscriber/NodeTranslationExceptionSubscriber.php
NodeTranslationMigrateSubscriber.php in core/modules/node/src/EventSubscriber/NodeTranslationMigrateSubscriber.php
ProviderRepository.php in core/modules/media/src/OEmbed/ProviderRepository.php
Query.php in core/lib/Drupal/Core/Entity/KeyValueStore/Query/Query.php
Query.php in core/lib/Drupal/Core/Config/Entity/Query/Query.php
QueryFactory.php in core/lib/Drupal/Core/Entity/KeyValueStore/Query/QueryFactory.php
QueryFactory.php in core/lib/Drupal/Core/Config/Entity/Query/QueryFactory.php
State.php in core/lib/Drupal/Core/State/State.php
UpdateHookRegistry.php in core/lib/Drupal/Core/Update/UpdateHookRegistry.php
UpdateHookRegistryTest.php in core/tests/Drupal/Tests/Core/Update/UpdateHookRegistryTest.php
UpdateManager.php in core/modules/update/src/UpdateManager.php
UpdateProcessor.php in core/modules/update/src/UpdateProcessor.php

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