[GHC] #8539: Data.Complex shouldn't use default implementation of (**)

[GHC]

#8539: Data.Complex shouldn't use default implementation of (**)
-------------------------------------+-------------------------------------
              Reporter:              |            Owner:
  jjaredsimpson                      |           Status:  patch
                  Type:  bug         |        Milestone:
              Priority:  low         |          Version:  7.6.3
             Component:  Prelude     |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Easy (less than 1
  Unknown/Multiple                   |  hour)
       Type of failure:  Incorrect   |       Blocked By:
  result at runtime                  |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by thomie):

 * cc: ekmett (added)
 * status:  infoneeded => patch


Comment:

 yalas added a new patch, which needs to be reviewed.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8539#comment:27>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler