* gc.c (gc_stat_internal): rename:
  * remembered_shady_object -> remembered_wb_unprotected_objects
  * remembered_shady_object_limit -> remembered_wb_unprotected_objects_limit
  * old_object -> old_objects
  * old_object_limit -> old_objects_limit
  ref: [Feature #9924]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47491 b2dd03c8-39d4-4d8f-98ff-823fe69b080e