[GHC] #12556: `stimes` adds extra power to Semigroup

[GHC]

#12556: `stimes` adds extra power to Semigroup
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        Reporter:  Iceland_jack      |                Owner:
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  libraries/base    |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by osa1):

 This probably needs to be discussed in the libraries mailing list.

 I agree this is a bit weird. If `sconcat` takes a `NonEmpty` as argument,
 then
 maybe `stimes` should take a `NonZero`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12556#comment:2>
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