Re: emacs master + org Wrong type argument: number-or-marker-p

[Gregory Heytings]

> > Frankly I'd recommend that the whole change be reverted because it 
> > performs unbalanced specbinds which we expect functions not to do. I 
> > don't think it can be salvaged in its current form; better back it out 
> > and let the author submit a new proposal for how to handle the problem.
>
> Gregory, we don't really need to be able to make such "locked" narrowing 
> from Lisp, do we?

We don't, indeed, at least not now.

> If we don't, my suggestion is to make a 3-arg C function whose guts is 
> the current code of Fnarrow_to_region, and then have Fnarrow_to_region 
> call that with the last argument nil. Then the changes in the byte 
> compiler, byte-interpreter, and native-compiler can be reverted.

I'll do that.  But that wouldn't solve the "unbalanced specbinds" Mattias 
mentions.  Is it not allowed to specbind in a function and to unbind in 
its caller?  I don't see why it wouldn't, but I may be missing something.