[GHC] #7338: Duplicate type signature not reported

[GHC]

#7338: Duplicate type signature not reported
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    Reporter:  evincarofautumn  |       Owner:  michalt                         
        Type:  bug              |      Status:  merge                           
    Priority:  normal           |   Milestone:                                  
   Component:  Compiler         |     Version:  7.4.1                           
    Keywords:                   |          Os:  Unknown/Multiple                
Architecture:  x86              |     Failure:  GHC accepts invalid program     
  Difficulty:  Unknown          |    Testcase:  rename/should_fail/T7338, T7338a
   Blockedby:                   |    Blocking:                                  
     Related:  #5589            |  
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Changes (by simonpj):

  * status:  patch => merge
  * testcase:  => rename/should_fail/T7338, T7338a


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7338#comment:5>
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