[GHC] #13358: Role ranges (allow decomposition on newtypes)

[GHC]

#13358: Role ranges (allow decomposition on newtypes)
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        Reporter:  ezyang            |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  low               |            Milestone:
       Component:  Compiler (Type    |              Version:  8.1
  checker)                           |             Keywords:  backpack,
      Resolution:                    |  Roles
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 ezyang):

 * priority:  normal => low


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13358#comment:4>
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