[GHC] #7489: Obscure warning: Var/Type length mismatch when using GADTs and TypeFamilies

[GHC]

#7489: Obscure warning: Var/Type length mismatch when using GADTs and TypeFamilies
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  Reporter:  portnov                             |          Owner:                  
      Type:  bug                                 |         Status:  merge           
  Priority:  normal                              |      Milestone:                  
 Component:  Compiler                            |        Version:  7.6.1           
Resolution:  fixed                               |       Keywords:                  
        Os:  Unknown/Multiple                    |   Architecture:  Unknown/Multiple
   Failure:  Incorrect warning at compile-time   |     Difficulty:  Unknown         
  Testcase:  indexed_types/should_compile/T7489  |      Blockedby:                  
  Blocking:                                      |        Related:                  
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Comment(by portnov):

 Hi. Thanks for fixing the bug.

 Which version of GHC will include this fix? 7.6.2 or only 7.8 ?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7489#comment:4>
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