[FormRecognizer] Make FieldValue's integer value an Int64 (Azure#12320)

Author: kinelski

sdk/formrecognizer/Azure.AI.FormRecognizer/CHANGELOG.md

@@ -23,6 +23,7 @@
 - `RecognizeContentOperation` now returns a `FormPageCollection`.
 - `RecognizeReceiptsOperation` now returns a `RecognizedReceiptCollection`.
 - `RecognizeCustomFormsOperation` now returns a `RecognizedFormCollection`.
+- In preparation for service-side changes, `FieldValue.AsInt32` has been replaced by `FieldValue.AsInt64`, which returns a `long`.
 
 ### New Features
 

sdk/formrecognizer/Azure.AI.FormRecognizer/src/FieldValue.cs

@@ -43,11 +43,11 @@ public string AsString()
         }
 
         /// <summary>
-        /// Gets the value of the field as an <see cref="int"/>.
+        /// Gets the value of the field as a <see cref="long"/>.
         /// </summary>
-        /// <returns>The value of the field converted to an <see cref="int"/>.</returns>
+        /// <returns>The value of the field converted to a <see cref="long"/>.</returns>
         /// <exception cref="InvalidOperationException">Thrown when <see cref="Type"/> is not <see cref="FieldValueType.Integer"/> or when the value is <c>null</c>.</exception>
-        public int AsInt32()
+        public long AsInt64()
         {
             if (Type != FieldValueType.Integer)
             {

sdk/formrecognizer/Azure.AI.FormRecognizer/src/FieldValue_internal.cs

@@ -8,6 +8,9 @@ namespace Azure.AI.FormRecognizer.Models
     [CodeGenModel("FieldValue")]
     internal partial class FieldValue_internal
     {
+        /// <summary>Integer value.</summary>
+        public long? ValueInteger { get; }
+
         internal FieldValue_internal(string value)
         {
             Type = FieldValueType.String;

sdk/formrecognizer/Azure.AI.FormRecognizer/src/Generated/Models/FieldValue_internal.Serialization.cs

@@ -58,12 +58,12 @@ internal static FormField<string> ConvertPhoneNumberField(string fieldName, IRea
             return null;
         }
 
-        internal static FormField<int> ConvertIntField(string fieldName, IReadOnlyDictionary<string, FormField> fields)
+        internal static FormField<long> ConvertInt64Field(string fieldName, IReadOnlyDictionary<string, FormField> fields)
         {
             FormField field;
             if (fields.TryGetValue(fieldName, out field))
             {
-                return new FormField<int>(field, field.Value.AsInt32());
+                return new FormField<long>(field, field.Value.AsInt64());
             }
 
             return null;