[Pharo-project] [update 2.0] #20454

[Marcus Denker]

20454
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Issue 7165:     CleanUp MethodChangeRecord
        http://code.google.com/p/pharo/issues/detail?id=7165



Diff information:
http://ss3.gemstone.com/ss/Pharo20/Tools-MarcusDenker.1008.diff
http://ss3.gemstone.com/ss/Pharo20/System-Changes-MarcusDenker.196.diff