[GHC] #13788: TypeInType fails to compile old code

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Mon Jun 5 14:26:34 UTC 2017


#13788: TypeInType fails to compile old code
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        Reporter:  br1               |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1-rc2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by br1):

 Your solution works.  The problem is that adding TypeInType requires
 adding kind signatures all over.  Then TypeInType is not an extension but
 a breaking change.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13788#comment:2>
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