bug#5863: defadvice in byte compiled file does not work

[Stefan Monnier]

> The info page I pointed to says that defadvice should work for
> primitives called from lisp code.  And that is what does not work for
> me here.

For such uses, there are several categories of functions:
- functions that have their own byte-code (things like widen, car, cdr, ...).
- functions that are implemented in C but don't have their own
  byte-code.
- other functions.

Pieces of advice on the first kind of functions only work for
calls from interpreted Lisp code.
Pieces of advice on the second kind of functions only work for
calls from Lisp code (both interpreted and byte-compiled).


        Stefan