...agento/CheckoutAgreements/Api/Data/AgreementInterface.php

app/code/Magento/Directory/Model/Currency.php

app/code/Magento/Payment/Model/Method/AbstractMethod.php

app/code/Magento/Payment/Model/Method/Cc.php

app/code/Magento/Payment/Model/Method/Free.php

app/code/Magento/Quote/Api/Data/ShippingMethodInterface.php

...de/Magento/Quote/Api/PaymentMethodManagementInterface.php

...e/Magento/Quote/Api/ShippingMethodManagementInterface.php

app/code/Magento/Quote/Model/QuoteManagement.php

app/code/Magento/Tax/Model/Quote/ToOrderConverter.php

.../testsuite/Magento/GiftMessage/Api/CartRepositoryTest.php

...onal/testsuite/Magento/Quote/Api/CouponManagementTest.php

...estsuite/Magento/GiftMessage/Model/CartRepositoryTest.php

...estsuite/Magento/GiftMessage/Model/ItemRepositoryTest.php

...nit/testsuite/Magento/Quote/Model/QuoteManagementTest.php