php5 syntax

node/expr/variable.go

@@ -22,6 +22,11 @@ func (n *Variable) Attributes() map[string]interface{} {
 	return nil
 }
 
+// SetVarName reset var name
+func (n *Variable) SetVarName(VarName node.Node) {
+	n.VarName = VarName
+}
+
 // Walk traverses nodes
 // Walk is invoked recursively until v.EnterNode returns true
 func (n *Variable) Walk(v walker.Visitor) {