bug#9054: 24.0.50; show source in other window

[martin rudalics]

>> Two windows. Run `describe-function' on a function: The help buffer pops
>> up in the other window. `other-window' and click the link to display the
>> source file: my original buffer is gone. Very annoying.
>>
>> What I would like: Either a function that displays the source for the
>> function at point in the other window or for the *Help* buffer to open
>> the source file in the same window (i.e. the window which displays the
>> *Help* buffer).
>
> Yes, it would be nice to allow displaying the source in the same window
> as the *Help* buffer was displayed in.  Martin, can this somehow be done
> via `display-buffer-alist', or would we have to add a new user option
> for `help-mode' for this?

See the discussion of Bug#36767.

martin