MC-21691: [Integration Tests] Failing - Magento.Braintree.Model.MultishippingTest.testCreateOrdersWithBraintreePaypal

- pr build fix

Author: Prabhu Ram

app/code/Magento/SalesRule/Model/Data/RuleDiscount.php

@@ -8,7 +8,6 @@
 namespace Magento\SalesRule\Model\Data;
 
 use Magento\SalesRule\Model\Rule\Action\Discount\Data;
-use Magento\SalesRule\Api\Data\RuleDiscountInterface;
 use Magento\Framework\Api\ExtensionAttributesInterface;
 
 /**

app/code/Magento/SalesRule/Api/Data/RuleDiscountInterface.php renamed to app/code/Magento/SalesRule/Model/Data/RuleDiscountInterface.php

@@ -6,7 +6,7 @@
 
 declare(strict_types=1);
 
-namespace Magento\SalesRule\Api\Data;
+namespace Magento\SalesRule\Model\Data;
 
 /**
  * Rule discount Interface
@@ -16,7 +16,7 @@ interface RuleDiscountInterface
     /**
      * Get Discount Data
      *
-     * @return mixed | \Magento\SalesRule\Model\Rule\Action\Discount\Data
+     * @return \Magento\SalesRule\Model\Rule\Action\Discount\Data
      */
     public function getDiscountData();
 

app/code/Magento/SalesRule/Model/Quote/Discount.php

@@ -7,7 +7,7 @@
 
 use Magento\SalesRule\Model\Rule\Action\Discount\DataFactory;
 use Magento\Framework\App\ObjectManager;
-use Magento\SalesRule\Api\Data\RuleDiscountInterfaceFactory;
+use Magento\SalesRule\Model\Data\RuleDiscountInterfaceFactory;
 
 /**
  * Discount totals calculation model.

app/code/Magento/SalesRule/Model/RulesApplier.php

@@ -12,7 +12,7 @@
 use Magento\SalesRule\Model\ResourceModel\Rule\Collection;
 use Magento\SalesRule\Model\Rule\Action\Discount\CalculatorFactory;
 use Magento\SalesRule\Model\Rule\Action\Discount\DataFactory;
-use Magento\SalesRule\Api\Data\RuleDiscountInterfaceFactory;
+use Magento\SalesRule\Model\Data\RuleDiscountInterfaceFactory;
 
 /**
  * Class RulesApplier

app/code/Magento/SalesRule/etc/di.xml

@@ -30,7 +30,7 @@
                 type="Magento\SalesRule\Model\Data\CouponMassDeleteResult" />
     <preference for="Magento\SalesRule\Api\CouponManagementInterface"
                 type="Magento\SalesRule\Model\Service\CouponManagementService" />
-    <preference for="Magento\SalesRule\Api\Data\RuleDiscountInterface"
+    <preference for="Magento\SalesRule\Model\Data\RuleDiscountInterface"
                 type="Magento\SalesRule\Model\Data\RuleDiscount" />
     <type name="Magento\SalesRule\Helper\Coupon">
         <arguments>

app/code/Magento/SalesRule/etc/extension_attributes.xml

@@ -7,9 +7,9 @@
 -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd">
     <extension_attributes for="Magento\Quote\Api\Data\CartItemInterface">
-        <attribute code="discounts" type="Magento\SalesRule\Api\Data\RuleDiscountInterface[]" />
+        <attribute code="discounts" type="mixed[]" />
     </extension_attributes>
     <extension_attributes for="Magento\Quote\Api\Data\AddressInterface">
-        <attribute code="discounts" type="Magento\SalesRule\Api\Data\RuleDiscountInterface[]" />
+        <attribute code="discounts" type="mixed[]" />
     </extension_attributes>
 </config>