[GHC] #3805: Bad error message "Invalid type signature"

[GHC]

#3805: Bad error message "Invalid type signature"
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  Reporter:  asuffield          |          Owner:                  
      Type:  bug                |         Status:  new             
  Priority:  normal             |      Milestone:                  
 Component:  Compiler (Parser)  |        Version:  6.12.1          
Resolution:                     |       Keywords:                  
Difficulty:                     |             Os:  Unknown/Multiple
  Testcase:                     |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown       |  
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Comment (by igloo):

 I think part of the problem is that it is ambiguous whether "type
 signature" refers to `e :: t` (in which case it is "invalid") or `:: t`
 (in which case it is "unexpected").

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3805#comment:3>
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