Fixed issue with no parameter funcs

Upsilon/BaseTypes/TypeConversion.cs

@@ -125,7 +125,7 @@ namespace Upsilon.BaseTypes
             if (t == typeof(ScriptType))
                 return Type.Unknown;
             if (typeof(IEnumerable).IsAssignableFrom(t))
-                return Type.Table | Type.Function;
+                return Type.Table;
             return Type.UserData;
         }
 

Upsilon/StandardLibraries/StaticScope.cs

@@ -109,13 +109,16 @@ namespace Upsilon.StandardLibraries
         {
             var genericParameters = type.GetGenericArguments();
             var parameters        = new List<InternalFunctionVariableSymbol.InternalFunctionParameter>();
-            for (var i = 0; i < genericParameters.Length - 1; i++)
+            if (genericParameters.Length > 1)
             {
-                var t = DeriveValidTypes(genericParameters[i]);
-                parameters.Add(new InternalFunctionVariableSymbol.InternalFunctionParameter(t, false));
+                for (var i = 0; i < genericParameters.Length - 1; i++)
+                {
+                    var t = DeriveValidTypes(genericParameters[i]);
+                    parameters.Add(new InternalFunctionVariableSymbol.InternalFunctionParameter(t, false));
+                }
             }
 
-            var result = genericParameters[parameters.Count - 1].GetScriptType();
+            var result = genericParameters[genericParameters.Length - 1].GetScriptType();
             return new InternalFunctionVariableSymbol(name, true, result, parameters.ToArray());
         }