slavapestov/factor — pull request #1244 by bjourne (2014-12-04 18:09:15+00:00)
Title: Vm refactorings

Here are some refactorings to make the vm code simpler. For example I removed the `nursery_collector` class because it's just an alias for `copying_collector`. And the bump_allocator template class was only ever instantiated with object, so then it is easier if it is a real class. Things like that.