[GHC] #1311: newtypes of unboxed types disallowed - documentation bug and/or feature request

[GHC]

#1311: newtypes of unboxed types disallowed - documentation bug and/or feature
request
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        Reporter:  Isaac Dupree      |                Owner:  osa1
            Type:  feature request   |               Status:  new
        Priority:  low               |            Milestone:  ⊥
       Component:  Compiler          |              Version:  7.7
      Resolution:                    |             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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Comment (by alexbiehl):

 I have put together a proof of concept
 [https://github.com/alexbiehl/ghc/commit/57a1a3506c90f2b8f75014ca71ca6b6730605502
 here]. It supports newtypes over unlifted data *and* unlifted data types
 (with unpacking). This is done without much knowledge about what is a
 right or wrong thing to do. But I would be happy if we could discuss it
 and maybe make it a patch we all agree with.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1311#comment:18>
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