30157
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10721 Cleanup Setting boolean sends
https://pharo.fogbugz.com/f/cases/10721
10715 Spec update
https://pharo.fogbugz.com/f/cases/10715
Diff information:
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Spec-Widgets-MarcusDenker.183.diff
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Spec-Core-MarcusDenker.128.diff
http://smalltalkhub.com/mc/Pharo/Pharo30/main/OpalCompiler-Tests-MarcusDenker.156.diff
http://smalltalkhub.com/mc/Pharo/Pharo30/main/OpalCompiler-Core-MarcusDenker.305.diff