[GHC] #3038: Associated type use triggers a bogus error message

[GHC]

#3038: Associated type use triggers a bogus error message
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 Reporter:  conal                    |          Owner:                  
     Type:  bug                      |         Status:  closed          
 Priority:  normal                   |      Milestone:                  
Component:  Compiler                 |        Version:  6.11            
 Severity:  normal                   |     Resolution:  duplicate       
 Keywords:  associated type synonym  |       Testcase:                  
       Os:  Unknown/Multiple         |   Architecture:  Unknown/Multiple
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Changes (by chak):

  * status:  new => closed
  * resolution:  => duplicate

Comment:

 The signature of `ch' is ambiguous.  See #1897 for similar examples and a
 long discussion.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3038#comment:1>
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