GraphQL-433: Prepare Quote GraphQL scheme for 2.3.1 release

Author: naydav

app/code/Magento/ConfigurableProductGraphQl/etc/schema.graphqls

@@ -49,7 +49,7 @@ type AddConfigurableProductsToCartOutput {
 }
 
 input ConfigurableProductCartItemInput {
-    data: CartItemDetailsInput!
+    data: CartItemInput!
     variant_sku: String!
     customizable_options:[CustomizableOptionInput!]
 }

app/code/Magento/QuoteGraphQl/etc/schema.graphqls

@@ -78,14 +78,6 @@ type SetShippingMethodsOnCartOutput {
     cart: Cart!
 }
 
-# If no address is provided, the system get address assigned to a quote
-# If there's no address at all - the system returns all shipping methods
-input AvailableShippingMethodsOnCartInput {
-    cart_id: String!
-    customer_address_id: Int
-    address: CartAddressInput
-}
-
 input ApplyCouponToCartInput {
     cart_id: String!
     coupon_code: String!
@@ -119,7 +111,7 @@ type CartAddress {
 }
 
 type CartItemQuantity {
-    cart_item_id: String!
+    cart_item_id: Int!
     quantity: Float!
 }
 
@@ -142,11 +134,7 @@ type AvailableShippingMethod {
     carrier_title: String!
     method_code: String!
     method_title: String!
-    error_message: String
     amount: Float!
-    base_amount: Float!
-    price_excl_tax: Float!
-    price_incl_tax: Float!
 }
 
 enum AdressTypeEnum {
@@ -222,8 +210,3 @@ type CartItemSelectedOptionValuePrice {
     units: String!
     type: PriceTypeEnum!
 }
-
-input CartItemDetailsInput {
-    sku: String!
-    qty: Float!
-}

dev/tests/api-functional/testsuite/Magento/GraphQl/Quote/AddSimpleProductToCartTest.php

@@ -75,7 +75,9 @@ public function testAddProductIfQuantityIsNotAvailable()
     }
   ) {
     cart {
-      cart_id
+      items {
+        qty
+      }
     }
   }
 }