[GHC] #9590: AMP breaks `haskell2010` package

[GHC]

#9590: AMP breaks `haskell2010` package
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              Reporter:  hvr         |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  high        |        Milestone:  7.10.1
             Component:              |          Version:  7.9
  libraries/haskell2010              |         Keywords:  AMP
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  GHC         |  Related Tickets:
  rejects valid program              |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by hvr):

 * cc: ekmett, thoughtpolice (added)


Comment:

 One obvious way to fix this would be to have `haskell2010` have its own
 `Monad` typeclass, but this would make it incompatible with `base`'s
 `Monad`, effectively breaking interoperability between packages depending
 on `base` and those depending on `haskell2010`...

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9590#comment:2>
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