[GHC] #12579: Allowed to create non-alphanumeric data / newtype constructor that cannot be used

[GHC]

#12579: Allowed to create non-alphanumeric data / newtype constructor that cannot
be used
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        Reporter:  Iceland_jack      |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:  duplicate         |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by mpickering):

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


Comment:

 See #12051

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12579#comment:1>
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