[V] Handle macros, autoloads correctly in symbol-file. Add an incomplete TYPE arg.

[Aidan Kehoe]

 Ar an dara lá de mí Eanair, scríobh Stephen J. Turnbull: 

 > You could either make the assignment expression the argument of the
 > SUBRP (but you'd have to check the macro definition for argument
 > safety), or use the comma operator to sequence.

I ended up checking for nil instead of zero. Your first approach might have
been better, but I’m not going to revise it now :-) .

 >  >  > BTW, it looks to me like this probably should be an assert, but I
 >  >  > don't know where to look it up offhand.
 >  > 
 >  > No, if I understand you correctly that would make it trivial to crash
 >  > XEmacs from Lisp with:
 > 
 > Fine.  But shouldn't
 > 
 >  > (progn
 >  >   (fset 'whatever '(macro . not-a-subr))
 >  >   (built-in-symbol-file 'whatever))
 > 
 > should be caught and handled somehow? 

No, people can fuck around with the function definition all they want. It’s
bad practice, but it’s legal Lisp--see for example the autoload
implementation for keymaps.

 > And ... hm ...
 > 
 >  >  >  > 	Our load-history doesn't have the relevant metadata.
 > 
 > Do you plan to do anything about the lack of metadata?

Yeah, sync from GNU. Eventually. 

-- 
¿Dónde estará ahora mi sobrino Yoghurtu Nghé, que tuvo que huir
precipitadamente de la aldea por culpa de la escasez de rinocerontes?