0.7.13.11:

0.7.13.11:
	Merge "type system insanity" (CSR sbcl-devel 2002-03-01)
	... extend INVOKE-COMPLEX-SUBTYPEP-ARG1-METHOD to take return
		values for the case that no next method is found
	... define and use (once!) equivalent logic for COMPLEX-=
	... be more uncertain on intersections of class types, since we
		create them when we don't know enough to canonicalize
	... various other cases demand more uncertainty, too (e.g.
		intersections involving HAIRY-TYPEs)
	No known failures inherent to the type system!