[GHC] #12024: GHC leaks GHC.Prim.~# into type

[GHC]

#12024: GHC leaks GHC.Prim.~# into type
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        Reporter:  Iceland_jack      |                Owner:
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  7.10.3
  checker)                           |             Keywords:
      Resolution:                    |  PatternSynonyms
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:  T12024
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * testcase:   => T12024
 * status:  new => patch


Comment:

 This has been fixed with #11660. Testcase in Phab:D2702.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12024#comment:4>
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