[Pharo-project] [update 1.3] #13136

[Marcus Denker]

13136
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Issue 3969:     MorphTreeMorph performance
Issue 3870:     [Failing Test] 1.3 
KernelTests.Methods.CompiledMethodTest.testNew
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Marcus Denker  -- http://www.marcusdenker.de
INRIA Lille -- Nord Europe. Team RMoD.