0.9.3.53:

0.9.3.53:
	Fix a "bug" (difficult to tell if it's really a bug, but if it
	isn't we shouldn't be emitting a CONSTANT-MODIFIED warning on
	it) in the ctor MAKE-INSTANCE optimization.
	... we can't do `(setf (cdr ',place) ...) any more, so instead
		wrap another function around it and close over the
		locations.
	... test case (related to CLASS-13.1 from PFD ansi-tests).