Patch to prototype in insn-*.[ch]

[Jeffrey A Law]

  In message < 199908110133.VAA18890@caip.rutgers.edu >you write:
  > 	The following patch adds prototypes in gen*.c as well as in
  > their generated files insn-*.[ch].  There are three notable exceptions
  > which I didn't fix.
  > 
  > 1.  In insn.attr.h, I couldn't readily determine the right args for
  >     some of the functions since they are generated on the fly and I
  >     wasn't able to figure it out yet.  I put in placeholders for now.
I'd rather not have the placeholders.  They'll just make it more difficult
to track these down unless I'm missing something.


  > 2.  In insn-flags.h, there were a couple of prototypes wrapped by
  >     MD_CALL_PROTOTYPES.  See:
  >     http://egcs.cygnus.com/ml/gcc/1999-08/msg00316.html
Right.  Known issue.  Let's revisit after we get some of the other backlogged
stuff dealt with.


  > 3.  In insn-output.c, the `insn_gen_function' function ptr array
  >     defines itself with unknown args.  E.g. "()".  However the
  >     `insn_gen_function' prototype in expr.h uses PROTO ((rtx, ...)).
  >     This looked wrong since the functions assigned to the array are
  >     definitely not variable argument functions.  I seem to recall this
  >     might lose on system which pass args differently when using
  >     varargs like Irix6. (?)  Although I can't point to any specific
  >     failures, I left it alone for now.
Sounds reasonable.  We can revisit this too.


So, let's consider the patch without the placeholders approved, get it
installed and iterate on the remaining issues.

jeff