"bare" lisp and AUTOLOAD properties

[JONL at MIT-MC (Jon L White)]

By a very clever sharing arrangement, the presence of the
initial AUTOLOAD properties takes up verry little space -- 
so little in fact, that they merely took up the "slop" in
the remaining (formerly unused) part of PURE list/symbol
structure.  We've also been very careful to delete something
less desirable, when some new autoloadable property goes in.
There is of course a trade-off here between inconvenience to
the "naive" maclisp user, and the address-starved Macsyma,
but it's not clear what of the current autoloadables should
be flushed, even if there were the opportunity to flush
enough to make up 1K of space.