[GHC] #3101: GHC crashes on synonym family in a rank-n type

[GHC]

#3101: GHC crashes on synonym family in a rank-n type
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    Reporter:  MartijnVanSteenbergen  |        Owner:         
        Type:  bug                    |       Status:  new    
    Priority:  normal                 |    Milestone:         
   Component:  Compiler               |      Version:  6.10.1 
    Severity:  normal                 |   Resolution:         
    Keywords:                         |   Difficulty:  Unknown
    Testcase:                         |           Os:  MacOS X
Architecture:  Unknown/Multiple       |  
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Changes (by simonpj):

  * difficulty:  => Unknown

Comment:

 I don't think 'deriving' supports rank-N types. (What would you want it to
 show?)

 Thanks for he report; I'll add a test so that it's rejected in a more
 civilised way.

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3101#comment:2>
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