* gc.c (gc_page_sweep): refactoring.
* gc.c (gc_page_sweep): should not set, but add final_slots into
  sweep_page->final_slots.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e