go and return-from inside unwind-protect cleanup

[David A. Moon <Moon@SCRC-STONY-BROOK.ARPA>]

I have no objection, stylistic or otherwise, to GO inside the
first subform of UNWIND-PROTECT.  It's only GO inside of the
cleanup subforms (the second, third, ...) of UNWIND-PROTECT
that makes me barf.  The same applies to RETURN, RETURN-FROM,
THROW, and any other transfer-of-control device.