>> Maybe use the comment thing first, and then match “comment” with the node type?
>
> We need to introduce the new thing named "comment".
> It's necessary to add treesit support for 'forward-comment'
> that is used in many packages including 'hideshow'.
>
> This means adding the variable 'forward-comment-function'
> with the default value 'forward-comment-default-function'.
> Then will override it with 'treesit-forward-comment' that
> uses the comment thing.

So here is the treesit implementation for the new
variable forward-comment-function: