18.104.22.168: revert 22.214.171.124 due to regression (lp#677779)
Reported by Ariel Badichi on sbcl-devel.
Using WITH-COMPILATION-UNIT to silence UNDEFINED-FUNCTION style-warnings for
forward-referenced functions was a bad idea after all: it caused cores dumped
using it to be started with **WORLD-LOCK** held by a dead thread.
...and it's not like WITH-COMPILATION-UNIT would ever get to summarize the
unit anyways the way it was used there.
Proper fix for this is to use UNDEFINED-REFERENCE-STYLE-WARNING as separate
condition class and just muffle those -- but this is too much to put in
during the freeze and will wait till after 1.0.46.