[GHC] #1754: Border case type families/type equality coercions cause the impossible to happen

[GHC]

#1754: Border case type families/type equality coercions cause the impossible to
happen
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    Reporter:  guest                          |        Owner:  chak   
        Type:  bug                            |       Status:  new    
    Priority:  normal                         |    Milestone:         
   Component:  Compiler                       |      Version:  6.8    
    Severity:  normal                         |   Resolution:         
    Keywords:  type family equality coercion  |   Difficulty:  Unknown
          Os:  Linux                          |     Testcase:         
Architecture:  Unknown                        |  
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Comment (by guest):

 I get the same error message ({{{initC: srt_lbl}}}) when compiling
 {{{TypeEq.hs}}} with GHC 6.8.0.20071019 under i386-unknown-linux.  When
 using GHCi instead, I get: {{{nameModule $dTypeEq{v a4b9}}}}.  Note that
 in conjunction with #1781 this seems to break HList-like record
 implementations.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1754#comment:3>
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