[GHC] #7525: Compiler panic with ill-typed code using implicit parameters

[GHC]

#7525: Compiler panic with ill-typed code using implicit parameters
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Reporter:  parcs               |          Owner:                  
    Type:  bug                 |         Status:  new             
Priority:  normal              |      Component:  Compiler        
 Version:  7.7                 |       Keywords:                  
      Os:  Unknown/Multiple    |   Architecture:  Unknown/Multiple
 Failure:  Compile-time crash  |      Blockedby:                  
Blocking:                      |        Related:                  
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Comment(by parcs):

 On second thought, this is probably an easier snippet to debug (I can't
 edit the description of the ticket for some reason):

 {{{
 {-# LANGUAGE ImplicitParams #-}
 module Bug where

 hmm :: ()
 hmm = let ?a = True in ?a
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7525#comment:1>
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