[GHC] #7131: FlexibleInstances / UndecidableInstances confusion

[GHC]

#7131: FlexibleInstances / UndecidableInstances confusion
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    Reporter:  goldfire          |       Owner:                  
        Type:  bug               |      Status:  new             
    Priority:  normal            |   Milestone:                  
   Component:  Compiler          |     Version:  7.5             
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
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Comment(by simonpj@…):

 commit f7b096e8630c91a17ff9a551ab15060b21d84eb0
 {{{
 Author: Simon Peyton Jones <simonpj at microsoft.com>
 Date:   Wed Aug 15 16:02:03 2012 +0100

     Test FlexibleInstance not UndecidableInstances in the ambiguity check

     Fixes Trac #7131

  compiler/typecheck/TcMType.lhs |   10 +++++-----
  1 files changed, 5 insertions(+), 5 deletions(-)
 }}}

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7131#comment:2>
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