refactor instance variables | accessors used to figure out which instance variables needed to be added and give you a chance to accept or reject the proposed list.   After loading the latest updates, it now presents a list of instance variables, letting you pick one and only one to add.

The new behavior is very awkward when you've just added several iVars to a class.  The old behavior was too "all or nothing".  I'd love to see one that presented all of the proposed accessors and let you accept them all or reject selective accessors.

-david