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Summary

  1. implement instVarIndexFor:ifAbsent: not by interating over all slots and (details)
Commit 9bbd597d7f9c1f84084e9366beca82be9f46cf21 by marcus.denker
implement instVarIndexFor:ifAbsent: not by interating over all slots and
counting, but instead by just asking the slot for it's index.
fixes #3497
The file was modifiedsrc/Slot-Core/AbstractLayout.class.st (diff)
The file was modifiedsrc/Slot-Core/PointerLayout.class.st (diff)
The file was modifiedsrc/Kernel/ClassDescription.class.st (diff)