[GHC] #15166: Bad error message when `!` is used without BangPatterns extension

[GHC]

#15166: Bad error message when `!` is used without BangPatterns extension
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        Reporter:  sighingnow        |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.5
      Resolution:  duplicate         |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  error/warning at compile-time      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13600            |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by sighingnow):

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


Comment:

 Yes, this indeed a duplicate of #13600, should be closed.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15166#comment:2>
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