[GHC] #12717: Permit data types in signatures to be implemented with equivalent pattern synonyms (and vice versa)

[GHC]

#12717: Permit data types in signatures to be implemented with equivalent pattern
synonyms (and vice versa)
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        Reporter:  ezyang            |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  lowest            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.1
  checker)                           |
      Resolution:                    |             Keywords:  backpack
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 ocharles):

 * cc: ocharles (added)


-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12717#comment:1>
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