15 files declare their use of CurrencyLocaleInterface in Currency 8.3

AddCurrencyLocaleTest.php in tests/src/Unit/Controller/AddCurrencyLocaleTest.php

BasicTest.php in tests/src/Unit/Plugin/Currency/AmountFormatter/BasicTest.php

ConfigImporterTest.php in tests/src/Unit/ConfigImporterTest.php

CurrencyLocaleAccessControlHandlerTest.php in tests/src/Unit/Entity/CurrencyLocale/CurrencyLocaleAccessControlHandlerTest.php

CurrencyLocaleDeleteFormTest.php in tests/src/Unit/Entity/CurrencyLocale/CurrencyLocaleDeleteFormTest.php

CurrencyLocaleFormTest.php in tests/src/Unit/Entity/CurrencyLocale/CurrencyLocaleFormTest.php

CurrencyLocaleImportFormTest.php in tests/src/Unit/Controller/CurrencyLocaleImportFormTest.php

CurrencyLocaleImportFormTest.php in tests/src/Unit/Form/CurrencyLocaleImportFormTest.php

CurrencyLocaleListBuilderTest.php in tests/src/Unit/Entity/CurrencyLocale/CurrencyLocaleListBuilderTest.php

EditCurrencyLocale.php in src/Controller/EditCurrencyLocale.php

EditCurrencyLocaleTest.php in tests/src/Unit/Controller/EditCurrencyLocaleTest.php

FormHelperTest.php in tests/src/Unit/FormHelperTest.php

IntlTest.php in modules/currency_intl/tests/src/Unit/Plugin/Currency/AmountFormatter/IntlTest.php

LocaleResolverTest.php in tests/src/Unit/LocaleResolverTest.php

ModuleInstallUninstallWebTest.php in tests/src/Functional/ModuleInstallUninstallWebTest.php