bug#23675: Feature request: Emacs 25.0.94: count-lines should offer a way to ignore invisible lines, e.g. outline mode

[Stefan Monnier]

>> Any reason why you didn't use forward-visible-line, which would leave
>> the skipping of invisible text to that function, and make your code
>> simpler?
> Because unlike forward-line, forward-visible-line does not indicate how
> many lines it failed to move when it cannot move the requested amount (of
> course it should).

Then let's fix that.


        Stefan