[GHC] #7869: GHC complains about applying a function to one argument

[GHC]

#7869: GHC complains about applying a function to one argument
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Reporter:  Mortchek          |          Owner:                  
    Type:  bug               |         Status:  new             
Priority:  normal            |      Component:  Compiler        
 Version:  7.4.2             |       Keywords:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  None/Unknown      |      Blockedby:                  
Blocking:                    |        Related:                  
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Comment(by simonpj@…):

 commit b988dc39a06278acc2373ba9a40ee08da0127411
 {{{
 Author: Simon Peyton Jones <simonpj at microsoft.com>
 Date:   Mon Apr 29 17:28:20 2013 +0100

     Suppress a misleading error message (Trac #7869)

     We were saying
          The function `f' is applied to one argument,
          but its type `[a] -> b' has only one
     which is obviously bogus.

     This fix suppresses the explanation in cases where it may not
     be the *right* explanation.

  compiler/typecheck/TcUnify.lhs |    9 ++++++---
  1 files changed, 6 insertions(+), 3 deletions(-)
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7869#comment:1>
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