0.8.0.78.vector-nil-string.8:

0.8.0.78.vector-nil-string.8:
	Some more OAOOification from *SAETP*
	... add a COMPLEX-TYPECODE field to *SAETP* to allow us to carry
		the information that SIMPLE-BIT-VECTOR and
		COMPLEX-BIT-VECTOR are both bit vectors.
	... use *SAETP* in %VECTOR-WIDETAG-AND-N-BITS,
		ARRAY-ELEMENT-TYPE and SHRINK-VECTOR (net win so far: 6)
	... we might need a FIXNUM type earlier than CLASS.  I've got
		one in, but then I found a refactor that might mean we
		don't need it.  The problem is in SPECIALIZE-ARRAY-TYPE,
		where obviously we need to have complete knowledge about
		all the possible upgraded-array-element-types so that
		we can ask whether a given type is SUBTYPEP.  FIXNUM
		is defined as a type fairly late, but maybe defining it
		before (simple-array (signed-byte 30) (*)) is enough,
		when combined with...
	Refactor PRIMITIVE-TYPEs
	... we only ever use the specifier, not the ctype, of
		PRIMITIVE-TYPE-TYPE, so...
	... delete the TYPE field and add a SPECIFIER field.
	... add AVERrance in SPECIALIZE-ARRAY-TYPE.