The Trunk: Environments-fbs.27.mcz

David T. Lewis uploaded a new version of Environments to project The Trunk:
http://source.squeak.org/trunk/Environments-fbs.27.mcz

==================== Summary ====================

Name: Environments-fbs.27
Author: fbs
Time: 9 May 2013, 10:39:28.736 pm
UUID: 8fe75259-bf86-4dfd-82f5-e57c4fbbca68
Ancestors: Environments-fbs.26

Like what Class rootsOfTheWorld does, only just for one Environment.

=============== Diff against Environments-fbs.26 ===============

Item was added:
+ ----- Method: Environment>>rootClasses (in category 'accessing') -----
+ rootClasses
+ "return a collection of classes which have a nil superclass"
+ ^ (self select: [:each | each isBehavior and: [each superclass isNil]]) asOrderedCollection.!