() Stefan Monnier <monnier@iro.umontreal.ca>
() Tue, 14 Feb 2017 09:04:56 -0500

   `C-h o` and `C-h v` work by making you jump to "the
   definition" but in your case, "the definition" is in
   define-derived-mode and is just not very interesting.

I see.

   ["definition" search obstacles].  So there's very little
   hope for `C-h o` to improve in this respect.

It's good enough for ‘C-h o’ to find ‘define-derived-mode’.  I
expect someone will make it so sooner or later, in the name of
Emacs cohesion.

For gnugo.el, i've installed a small comment intended to help
anyone who gets to the ‘define-derived-mode’ to make the last
step in the search, and will do likewise for other (personal)
code.  Perhaps if enough people adopt this convention, it will
become "alternative idiomatic"... :-D

-- 
Thien-Thi Nguyen -----------------------------------------------
 (defun responsep (query)
   (pcase (context query)
     (`(technical ,ml) (correctp ml))
     ...))                              748E A0E8 1CB8 A748 9BFA
--------------------------------------- 6CE4 6703 2224 4C80 7502