[GHC] #5051: Typechecker behaviour change

[GHC]

#5051: Typechecker behaviour change
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        Reporter:  igloo                         |            Owner:
            Type:  bug                           |           Status:  new
        Priority:  high                          |        Milestone:
       Component:  Compiler                      |          Version:  7.0.2
      Resolution:                                |         Keywords:
Operating System:  Unknown/Multiple              |     Architecture:
 Type of failure:  None/Unknown                  |  Unknown/Multiple
       Test Case:                                |       Difficulty:
  typecheck/should_compile/T5051                 |  Unknown
        Blocking:                                |       Blocked By:
                                                 |  Related Tickets:
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Changes (by ezyang):

 * milestone:  7.2.1 =>


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5051#comment:6>
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