0.9.3.45: more ANSI test fixes

0.9.3.45: more ANSI test fixes

* SUBTYPEP-FUNCTION.(1-4) now pass

* READ-BYTE and WRITE-BYTE no longer take stream designators, just
  streams (fixes READ-BYTE.ERROR.5 and WRITE-BYTE.ERROR.4)

* Found when reading COMPLEX types code, and in ansi-tests as
  MISC.580: (typep #c(1 2) '(and ratio (not fixnum))) -> error

Astute log-watchers will note that the version in the commit message
for my last commit was wrong. When I started that tree it was
0.9.3.41, but somebody else stole that number in the meantime. I fixed
version.lisp-expr, but not my own brain. Oops :-)