public AssignExprNode(int line, ExprNode left, ExprNode right)
: base(line, left, AssignOpNode.FromSymbol(line, "="), right)
{
}
public DecExprNode(int line, ExprNode expr)
: base(line, expr, AssignOpNode.FromSymbol(line, "-="), new LitExprNode(line, 1))
{
}
public AssignExprNode(int line, ExprNode left, AssignOpNode @operator, ExprNode right)
: base(line, left, @operator, right)
{
}