ACPT-1451: Fix functional tests failures

Author: vzabaznov

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

@@ -1799,6 +1799,8 @@ protected function getCustomAttributesCodes()
     }
 
     /**
+     * Realization of the actual set method to boost performance
+     *
      * @param float $value
      * @return $this
      */

app/code/Magento/SalesRule/Helper/CartFixedDiscount.php

@@ -123,7 +123,7 @@ public function getDiscountAmount(
      * @param float $qty
      * @param float $baseItemPrice
      * @param float $baseItemDiscountAmount
-     * @param float $baseRuleTotalsWithDiscount
+     * @param float $baseRuleTotalsDiscount
      * @param string $discountType
      * @return float
      */