Re: [GHC] #14395: Redefining pattern synonym in GHCi triggers "‘p’ is untouchable" error

[GHC]

#14395: Redefining pattern synonym in GHCi triggers "‘p’ is untouchable" error
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        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.2.1
  checker)                           |             Keywords:
      Resolution:  invalid           |  PatternSynonyms
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 RyanGlScott):

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


Comment:

 I'll be darned—you're absolutely right, I just lucked out with `pattern
 Bar :: Foo Int` and managed to get `pattern Bar = Nothing` (or really, `f
 Bar = Nothing`) to compile even in the absence of `PatternSynonyms`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14395#comment:2>
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