[refactoring] update ast structure of "Goto" and "Label" nodes

pkg/ast/node.go

@@ -505,7 +505,9 @@ func (n *StmtGlobal) Accept(v NodeVisitor) {
 // StmtGoto node
 type StmtGoto struct {
 	Node
-	Label Vertex
+	GotoTkn      *token.Token
+	Label        Vertex
+	SemiColonTkn *token.Token
 }
 
 func (n *StmtGoto) Accept(v NodeVisitor) {
@@ -582,6 +584,7 @@ func (n *StmtInterfaceExtends) Accept(v NodeVisitor) {
 type StmtLabel struct {
 	Node
 	LabelName Vertex
+	ColonTkn  *token.Token
 }
 
 func (n *StmtLabel) Accept(v NodeVisitor) {

pkg/ast/visitor/filter_tokens.go

@@ -265,3 +265,12 @@ func (v *FilterTokens) StmtThrow(n *ast.StmtThrow) {
 	n.ThrowTkn = nil
 	n.SemiColonTkn = nil
 }
+
+func (v *FilterTokens) StmtGoto(n *ast.StmtGoto) {
+	n.GotoTkn = nil
+	n.SemiColonTkn = nil
+}
+
+func (v *FilterTokens) StmtLabel(n *ast.StmtLabel) {
+	n.ColonTkn = nil
+}