void ExpandLastArg(List<Argument> arguments, DynamicMetaObject[] args, ref BindingRestrictions restrictions)
{
if (args.Length == 0)
return;
var lastArg = args.Last();
if (lastArg.LimitType != typeof(Varargs))
return;
// TODO: Use custom restriction (checks length and types) and add arguments by indexing into Varargs value
restrictions = restrictions.Merge(RuntimeHelpers.MergeInstanceRestrictions(lastArg));
var varargs = (Varargs)lastArg.Value;
arguments.RemoveAt(arguments.Count - 1);
arguments.AddRange(varargs.Select(value => new Argument(Expr.Constant(value), value.GetType())));
}
