[Pharo-dev] [regression reporter]regression occurred

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https://ci.inria.fr/pharo/job/Pharo-3.0-Update-Step-2-Validation/./label=linux-stable-worker/268/

2 regressions found.
  KernelTests.Numbers.NumberTest.testUnCategorizedMethods
  CollectionsTests.Strings.StringTest.testAt