[Pharo-dev] [update 3.0] #30216

30216 ----- 10995 remove #printWithClosureAnalysisOn: https://pharo.fogbugz.com/f/cases/10995 10985 StepList full of useless morphs https://pharo.fogbugz.com/f/cases/10985 10892 flatCollect added to pharo https://pharo.fogbugz.com/f/cases/10892 Diff information: http://smalltalkhub.com/mc/Pharo/Pharo30/main/Traits-MarcusDenker.516.diff http://smalltalkhub.com/mc/Pharo/Pharo30/main/Morphic-Base-MarcusDenker.17.d... http://smalltalkhub.com/mc/Pharo/Pharo30/main/Kernel-MarcusDenker.1493.diff http://smalltalkhub.com/mc/Pharo/Pharo30/main/Compiler-MarcusDenker.491.diff http://smalltalkhub.com/mc/Pharo/Pharo30/main/Collections-Abstract-MarcusDen...