0.7.12.3:

0.7.12.3:
	Fix two difficult-to-test bugs, as per discussion ('Three "interesting"
		PCL bugs', sbcl-devel 2003-01-25)
	... make sure the %CLASS declaration is in the right place even if
		a class name is the same as a variable name;
	... for FIXNUM emf, the new-value and the slot object arguments
		are distinct.  This may well be dead code.