[GHC] #13478: Data.List.NonEmpty.{unfold,unfoldr} differences

[GHC]

#13478: Data.List.NonEmpty.{unfold,unfoldr} differences
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        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  libraries/base    |              Version:  8.0.1
      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 ekmett):

 We can drop one of them. The `Data.List.NonEmpty` API was originally made
 by consolidating 2-3 different APIs from different authors to get a common
 API we could agree on. I apparently missed de-duplicating this corner of
 it. It probably should be `unfoldr` in name. I have no preference between
 the two implementations though.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13478#comment:2>
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