On Tue, 12 Mar 2013, Colin Putney wrote:

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> On Tue, Mar 12, 2013 at 2:03 PM, Frank Shearar <frank.shearar at gmail.com> wrote:
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>       The cluster of PureBehaviorTest failures look to largely be "Cannot
> store into read-only bindings" failures. A bunch of others too - the
> trait composition tests, for instance.
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> Huh. It's odd that this wasn't failing before—SystemDictionary doesn't, AFAICT, guard against read-only bindings. Did we have a bunch of bindings that should have been read-only, but weren't?

Yes, actually all classes should have a read-only binding, since this 
is not valid code:

 	Object := 1.

But starting with Squeak 3.x there's a bug, which makes new class 
bindings have Association instead of ReadOnlyVariableBinding as class. We 
discussed this a few months ago during the first iteration of 
Environments.


Levente

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