[GHC] #8012: Warn when using Enum instance for Float or Double

[GHC]

#8012: Warn when using Enum instance for Float or Double
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        Reporter:  gidyn             |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.6.3
      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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Changes (by gidyn):

 * cc: gideon@… (removed)


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8012#comment:2>
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