0.9.7.16:

0.9.7.16:
	More PCL smallification.
	... the ACCESSOR-SLOT-VALUE optimization creates a generic
		function (using load-time-value) when it sees
		a form like (slot-value x 'constant).  That's fine,
		but...
	... these generic functions are also created at class
		initialization time, three per slot.  This hurts
		now that we're creating classes eagerly (so that the
		mop functionality works) as even condition classes
		and structure classes cause these gfs to come into
		being.
	... so, rearrange things so that only those generic functions
		which are needed are created.  Never create one with
		a slot-missing method, as the automatically-generated
		method will fall through to the full call and get there
		eventually, anyway.
	... this causes slot-missing from slot-value outside of methods
		to be slower if (and only if) no slot of that name
		exists in the image anywhere.  We could potentially
		improve fall-through-to-slot-missing performance.

	(this shaves off 2.5Mb from sbcl.core on my x86)