override public Expression DoResolveLValue (EmitContext ec, Expression right_side)
{
VariableInfo vi = VariableInfo;
if (ec.DoFlowAnalysis)
ec.SetVariableAssigned (vi);
Expression e = DoResolve (ec);
if (e == null)
return null;
if (is_readonly){
Error (1604, "cannot assign to `" + Name + "' because it is readonly");
return null;
}
return this;
}