[GHC] #11777: RTS source code issues

[GHC]

#11777: RTS source code issues
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        Reporter:  simonpj           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 Regarding `RetainerSet.c`, perhaps we should trim down some of the
 retainer schemes? It looks like we currently use `RETAINER_SCHEME_CCS`. Is
 there anyone using the other two?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11777#comment:2>
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