remove StringVar attribute from expr.Variable

node/expr/n_variable.go

@@ -9,10 +9,9 @@ import (
 
 // Variable node
 type Variable struct {
-	Meta      meta.Collection
-	StringVar bool
-	Position  *position.Position
-	VarName   node.Node
+	Meta     meta.Collection
+	Position *position.Position
+	VarName  node.Node
 }
 
 // NewVariable node constructor
@@ -38,9 +37,7 @@ func (n *Variable) GetMeta() *meta.Collection {
 
 // Attributes returns node attributes as map
 func (n *Variable) Attributes() map[string]interface{} {
-	return map[string]interface{}{
-		"StringVar": n.StringVar,
-	}
+	return nil
 }
 
 // SetVarName reset var name

node/expr/t_visitor_test.go

@@ -333,9 +333,7 @@ var nodesToTest = []struct {
 	{
 		&expr.Variable{VarName: &node.Identifier{Value: "a"}},
 		[]string{"VarName"},
-		map[string]interface{}{
-			"StringVar": false,
-		},
+		map[string]interface{}{},
 	},
 	{
 		&expr.YieldFrom{