[GHC] #8993: Fold NullaryTypeClasses into MPTC

[GHC]

#8993: Fold NullaryTypeClasses into MPTC
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       Reporter:  owst              |             Owner:
           Type:  bug               |            Status:  new
       Priority:  normal            |         Milestone:
      Component:  Compiler          |           Version:  7.8.2
       Keywords:                    |  Operating System:  Unknown/Multiple
   Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
     Difficulty:  Unknown           |         Test Case:
     Blocked By:                    |          Blocking:
Related Tickets:                    |
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 NullaryTypeClasses are an instance of MultiParamTypeClasses, so make it
 so.

 Suggested by Austin
 [http://www.reddit.com/r/haskell/comments/22lw1b/ghc_781_released/cgoi79c
 on reddit]

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8993>
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