Better handling of int64 (#727)

Author: pawelbaran

Grasshopper_UI/Helpers/ToGH_Param.cs

@@ -79,10 +79,8 @@ public static IGH_Param ToGH_Param(this ParamInfo info)
                     break;
                 case "System.Int16":
                 case "System.Int32":
-                    param = new Param_Integer();
-                    break;
                 case "System.Int64":
-                    param = new Param_Time();
+                    param = new Param_Integer();
                     break;
                 case "System.String":
                     param = new Param_String();

Grasshopper_UI/Helpers/ToGoo.cs

@@ -167,7 +167,11 @@ public static IGH_Goo ToGoo(this int obj)
 
         public static IGH_Goo ToGoo(this long obj)
         {
-            return new GH_Time(new DateTime(obj)); // Based on what is done  in CallerComponent.ToGHParam()
+            int cast = (int)obj;
+            if (obj != cast)
+                BH.Engine.Base.Compute.RecordError("Grasshopper does not support 64-bit integers, casting to 32-bit resulted in integer overflow.");
+
+            return new GH_Integer(cast);
         }
 
         /*************************************/