[GHC] #10512: Generic instances missing for Int32, Word64 etc.

[GHC]

#10512: Generic instances missing for Int32, Word64 etc.
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        Reporter:  andreas.abel      |                   Owner:  ekmett
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Core Libraries    |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by dreixel):

 I'm actually not too sure that this is the right thing to do. In fact,
 I've wondered if we shouldn't *remove* all the instances for base types
 altogether. They don't really add much, do they? Generic functions
 typically require ad-hoc instances for base types, so it doesn't help to
 have these instances. Perhaps the only reason is the meta-data...

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10512#comment:2>
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