[GHC] #8668: SPECIALIZE silently fails to apply

[GHC]

#8668: SPECIALIZE silently fails to apply
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        Reporter:  crockeea          |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.6.2
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by simonpj):

 Where are `runRand` and `liftRand` defined?  Hoogle can't find either.
 Google finds package `MonadRandom` on hackage,
 [http://hackage.haskell.org/package/MonadRandom-0.1.3/docs/Control-Monad-
 Random.html here], but I can't see `liftRand`.

 Would it be possible to rejig the example so that it doesn't use this
 extra package?  Makes it much easier to reproduce.  You don't, presumably,
 actually need random numbers to demonstrate the bug.

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8668#comment:2>
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