Add support for TimeSpan > long

Author: mythz

src/ServiceStack.Text/AutoMappingUtils.cs

@@ -103,6 +103,8 @@ public static object ChangeValueType(object from, Type toType)
                     return c.ToString();
                 if (toType == typeof(TimeSpan) && from is long ticks)
                     return new TimeSpan(ticks);
+                if (toType == typeof(long) && from is TimeSpan time)
+                    return time.Ticks;
 
                 var destNumberType = DynamicNumber.GetNumber(toType);
                 var value = destNumberType?.ConvertFrom(from);

tests/ServiceStack.Text.Tests/AutoMappingObjectDictionaryTests.cs

@@ -327,17 +327,28 @@ public class ModelWithTimeSpan
             public TimeSpan Time { get; set; }
         }
 
+        public class ModelWithLong
+        {
+            public long Time { get; set; }
+        }
+
         [Test]
-        public void FromObjectDictionary_does_try_to_Convert_different_types()
+        public void FromObjectDictionary_does_Convert_long_to_TimeSpan()
         {
             var time = new TimeSpan(1,1,1,1);
             var map = new Dictionary<string, object> {
                 [nameof(ModelWithTimeSpan.Time)] = time.Ticks
             };
 
             var dto = map.FromObjectDictionary<ModelWithTimeSpan>();
-            
             Assert.That(dto.Time, Is.EqualTo(time));
+            
+            map = new Dictionary<string, object> {
+                [nameof(ModelWithTimeSpan.Time)] = time
+            };
+
+            var dtoLong = map.FromObjectDictionary<ModelWithLong>();
+            Assert.That(dtoLong.Time, Is.EqualTo(time.Ticks));
         }
     }