bug#68824: treesitter support for outline-minor-mode

[Juri Linkov]

>> Also a remaining question: why treesit-parent-until simply calls
>> ‘(funcall pred node)’ instead of supporting the standard format
>> that includes a regexp by using treesit-node-match-p?
>> 
>> This causes such an inconvenience that for treesit-outline-level
>> that uses treesit-parent-until there is a need to wrap a regexp
>> in a lambda such as for html-ts-mode below.
>
> Nothing other than my oversight :-)
> I pushed a change to master that fixes this.

Thanks.  It seems you forgot to replace 'funcall'
in 'treesit-parent-while' as well?  ;-)

> As for the patch, I think treesit-outline-predicate could be set to
> a named function rather than a lambda generated on the fly, but
> I don’t have strong opinions about it (and maybe you have some reason
> to use a lambda?) Otherwise LGTM.

I completely agree, so will move lambdas to the named functions.