Issue: DESTRUCTURING-BIND (Version 2)

[Eric Benson <eb@lucid.com>]

   Date: Fri, 27 Jan 89 21:01 EST
   From: David A. Moon <Moon@STONY-BROOK.SCRC.Symbolics.COM>

   Both LOOP and DESTRUCTURING-BIND allow NIL in place of a variable
   name as a way of ignoring a portion of the destructured tree, in
   Symbolics current practice.  I think that's a good idea and should
   go in the standard.  It's only an abbreviation for a dummy variable
   and a DECLARE IGNORE, but the whole destructuring feature is
   nothing but an abbreviation anyway.

Should NIL be allowed in DEFMACRO argument lists also?