By convention: * Types do not have "`env`" or "object`" or whatever in them. * The primary function to free a foo is called `foo_free()`, not `foo_free_env()`. * The primary function that allocates and returns a newly allocated foo is called `foo_new()`, not `foo_create()` or `foo_new_env()`. We violate these rules, though, with a fair number of longstanding types and identifiers. How annoying! Let's fix that. This will make some pending unmerged code get merge conflicts or need rewrites, but now that we're moving towards the end of the 0.2.3.x release cycle, it's the perfect time to do that.