func (n *UnaryOperator) AddChild(node Node) {
	n.ChildNodes = append(n.ChildNodes, node)
}
AddChild adds a new child node. Child nodes can then be accessed with the
Children attribute.
package ast
type UnaryOperator struct {
	Addr             Address
	Pos              Position
	Type             string
	Type2            string
	IsLvalue         bool
	IsPrefix         bool
	IsCannotOverflow bool
	Operator         string
	ChildNodes       []Node
}
func parseUnaryOperator(line string) *UnaryOperator {
	groups := groupsFromRegex(
		`<(?P<position>.*)>
		 '(?P<type>.*?)'(:'(?P<type2>.*)')?
		(?P<lvalue> lvalue)?
		(?P<prefix> prefix)?
		(?P<postfix> postfix)?
		 '(?P<operator>.*?)'
		(?P<overflow> cannot overflow)?`,
		line,
	)
	return &UnaryOperator{
		Addr:             ParseAddress(groups["address"]),
		Pos:              NewPositionFromString(groups["position"]),
		Type:             groups["type"],
		Type2:            groups["type2"],
		IsLvalue:         len(groups["lvalue"]) > 0,
		IsPrefix:         len(groups["prefix"]) > 0,
		IsCannotOverflow: len(groups["overflow"]) > 0,
		Operator:         groups["operator"],
		ChildNodes:       []Node{},
	}
}