[Chicken-hackers] [PATCH] Fix a logical bug in the optimizer

[lemonboy]

Hello hackers,
while doing some work on the optimizer I ended up noticing something
weird in how `scan-toplevel-assignments'
handles some nodes. A quick `git blame' shows that the bug has been
introduced some years ago in a fixup
commit [1], I've reverted the code to the previous version and added a
parameter to scan-each for clearing the
`previous' variable. I hope that's fine for you.

Cheers,
LemonBoy

[1] 
http://code.call-cc.org/cgi-bin/gitweb.cgi?p=chicken-core.git;a=commit;h=ac8f2dadd