[GHC] #6001: Wrong diagnostics for instance signature mismatch

[GHC]

#6001: Wrong diagnostics for instance signature mismatch
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    Reporter:  heisenbug         |       Owner:  pcapriotti                       
        Type:  bug               |      Status:  new                              
    Priority:  normal            |   Milestone:  7.6.1                            
   Component:  Compiler          |     Version:  7.5                              
    Keywords:                    |          Os:  Unknown/Multiple                 
Architecture:  Unknown/Multiple  |     Failure:  Incorrect warning at compile-time
  Difficulty:  Unknown           |    Testcase:                                   
   Blockedby:                    |    Blocking:                                   
     Related:                    |  
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Comment(by p.capriotti@…):

 commit 148b27b679d351dea967638f27d09325cc74422b
 {{{
 Author: Paolo Capriotti <p.capriotti at gmail.com>
 Date:   Thu Apr 12 10:44:31 2012 +0100

     Fix instance signature error message (#6001)

     Display class method signature instead of user-provided signature.

  compiler/typecheck/TcInstDcls.lhs |    2 +-
  1 files changed, 1 insertions(+), 1 deletions(-)
 }}}

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6001#comment:5>
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