[Pharo-dev] [update 3.0] #30161

[Esteban Lorenzano]

30161
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10720 Morphic-Base classes have extension methods of Morphic
        https://pharo.fogbugz.com/f/cases/10720

Diff information:
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Morphic-Base-EstebanLorenzano.3.diff