[refactoring] update ast structure of "InlinHtml" node

pkg/ast/node.go

@@ -535,7 +535,8 @@ func (n *StmtIf) Accept(v NodeVisitor) {
 // StmtInlineHtml node
 type StmtInlineHtml struct {
 	Node
-	Value []byte
+	InlineHtmlTkn *token.Token
+	Value         []byte
 }
 
 func (n *StmtInlineHtml) Accept(v NodeVisitor) {

pkg/ast/visitor/filter_tokens.go

@@ -200,3 +200,7 @@ func (v *FilterTokens) StmtEcho(n *ast.StmtEcho) {
 	n.SeparatorTkns = nil
 	n.SemiColonTkn = nil
 }
+
+func (v *FilterTokens) StmtInlineHtml(n *ast.StmtInlineHtml) {
+	n.InlineHtmlTkn = nil
+}