[GHC] #3208: Type family panic (taking the IdInfo of a coercion variable)

[GHC]

#3208: Type family panic (taking the IdInfo of a coercion variable)
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    Reporter:  simonpj           |        Owner:  chak            
        Type:  bug               |       Status:  new             
    Priority:  normal            |    Milestone:  6.12 branch     
   Component:  Compiler          |      Version:  6.11            
    Severity:  normal            |   Resolution:                  
    Keywords:                    |   Difficulty:  Unknown         
    Testcase:                    |           Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |  
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Changes (by chak):

  * version:  6.10.2 => 6.11

Comment:

 Seems to be related to (if not a duplicate of) #2767.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3208#comment:1>
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