GRINDEF and old-style DO

[Alan Bawden <ALAN at MIT-MC>]

    Date: 29 September 1980 1115-EDT (Monday)
    From: Guy.Steele at CMU-10A

    Recall that one can always convert old-style DO to new-style
    simply by inserting six parentheses:
    	(DO X INIT STEP TEST BODY) => (DO ((X INIT STEP)) (TEST) BODY)
    SO a quick way out is just to grind every old-style DO as a new-style
    one, by this conversion (this amounts to an implicit declaration of war
    against old-style DO as being obsolete).
    I'm not sure I really advocate this -- just pointing out the possibility.

barf