[GHC] #11264: Previously compiling example does not compile

[GHC]

#11264: Previously compiling example does not compile
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        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  high              |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.11
      Resolution:  invalid           |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  GHC rejects       |            Test Case:
  valid program                      |  typecheck/should_compile/ClassOperator
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"fd1b5ae701bf3f0de5d2a56a7320b68d4f66b510/ghc" fd1b5ae/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="fd1b5ae701bf3f0de5d2a56a7320b68d4f66b510"
 testsuite/ClassOperator: This actually should_fail

 See #11264 for details.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11264#comment:6>
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