[GHC] #11091: Fix MonadFail warnings

[GHC]

#11091: Fix MonadFail warnings
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        Reporter:  quchen            |                Owner:  (none)
            Type:  task              |               Status:  closed
        Priority:  low               |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  7.11
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  warning at compile-time            |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * status:  new => closed
 * resolution:   => fixed
 * milestone:   => 8.4.1


Comment:

 I believe this is done.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11091#comment:6>
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