[GHC] #12371: Error message, room for improvement

[GHC]

#12371: Error message, room for improvement
-------------------------------------+-------------------------------------
        Reporter:  Iceland_jack      |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.0.2
       Component:  Compiler          |              Version:  8.0.1
      Resolution:  fixed             |             Keywords:
                                     |  TypeApplications
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:  merge => closed
 * resolution:   => fixed
 * milestone:   => 8.0.2


Comment:

 Merged to `ghc-8.0` as 02415404ab26a5f12dffd9c98f2a923dbdde2329.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12371#comment:3>
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