[GHC] #11464: Type casts cause confusing error

[GHC]

#11464: Type casts cause confusing error
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        Reporter:  simonpj           |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
                                     |  typecheck/should_fail/T11464
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by goldfire):

 One could theoretically want `tcSplitCastedTyConApp_maybe` which is
 somewhat less crude, but I agree that this works.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11464#comment:4>
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