Sat May 17 13:23:52 CEST 2008

implementing 'exit' chunk splitting

basicly, this needs to:
   * split with new label = dead code
   * collect current chunk

ok.. this, together with factoring out the target-post code and dead
code elimination, which is now as good as free, seem to work fine.

next: org

small fix: instead of eliminating dead code, it's better not to
generate it in the first place: compiler will drop when code is not
associated to a label.