[perl #42968] [TODO] Remove deprecated opcodes: adddoes, removedoes, singleton  # New Ticket Created by  Bernhard Schmalhofer 
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In r18267, pre Parrot 0.4.11, Jonathan deprecated following opcodes:

  adddoes, removedoes, singleton

So with Parrot 0.4.12, after a deprecation cycle, the cleaning up can begin.

