private void NormalizeEnum(CallExpression callExpr)
        {
            if (callExpr.TypeArguments.Count == 0 &&
                callExpr.Arguments.Count >= 2 &&
                callExpr.Expression.Kind == NodeKind.PropertyAccessExpression &&
                (callExpr.Expression as PropertyAccessExpression).Name.Text == "asEnum")
            {
                string[] typeParts    = callExpr.Arguments[1].Text.Split('.');
                string   typeText     = typeParts[typeParts.Length - 1];
                Node     typeArgument = NodeHelper.CreateNode(
                    "{ " +
                    "kind: \"TypeReference \", " +
                    "typeName: { " +
                    "kind: \"Identifier\", " +
                    "text: \"" + typeText + "\", " +
                    "}" +
                    "}");

                callExpr.RemoveArgumentAt(1);
                List <Node> newArguments = new List <Node>();
                foreach (var arg in callExpr.Arguments)
                {
                    newArguments.Add(NodeHelper.CreateNode(arg.TsNode));
                }
                callExpr.ClearArguments();
                callExpr.AddArguments(newArguments);
                callExpr.AddTypeArgument(typeArgument);
            }
        }