[Pharo-dev] Is variable shadowing a feature or a bug?

[Benjamin]

I just discovered that in Pharo 3 you can do: 

[ :bool | 
        self logCr: bool.
        bool := false.
        self logCr: bool.
        ] value: true

Is this a bug or a feature ?

I am fighting with this every day in javascript, and I do not know about to 
feel about this :s

Ben