[Pharo-dev] How to integrate change on class Point

Hi I would like to remove some dusts in the class Point. No decent class comments, cleaning typo in organisation and cleaning some method comments. In fact I should do a real pass. Now I published https://pharo.fogbugz.com/f/cases/16953/Clean-Point-Reciprocal-comment-and-i... When I merged the slice I get a classBuilder warning and it means that my changes cannot be loaded and it fails of course. I do not like this classBuilder warning in fact. I can break Pharo in one line of code even with it. So may be in pharo dev mode we should not get it. So what is the way to do it properly. Stef