[Pharo-dev] [update 3.0] #30273

30273 ----- 11167 Changeset>>#current needs to check for nil https://pharo.fogbugz.com/f/cases/11167 11165 MethodMapTests: two tests fail due to code change in #halt https://pharo.fogbugz.com/f/cases/11165 11166 Enable drag and drop on AlainTreeModel https://pharo.fogbugz.com/f/cases/11166 Diff information: http://smalltalkhub.com/mc/Pharo/Pharo30/main/System-Changes-MarcusDenker.21... http://smalltalkhub.com/mc/Pharo/Pharo30/main/Spec-Widgets-MarcusDenker.209.... http://smalltalkhub.com/mc/Pharo/Pharo30/main/OpalCompiler-Tests-MarcusDenke...