[GHC] #9763: Implement Foldable methods for Array directly

[GHC]

#9763: Implement Foldable methods for Array directly
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              Reporter:  dfeuer      |            Owner:  dfeuer
                  Type:  task        |           Status:  patch
              Priority:  normal      |        Milestone:  7.10.1
             Component:  Core        |          Version:  7.9
  Libraries                          |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D459   |
-------------------------------------+-------------------------------------
Changes (by dfeuer):

 * differential:  Phab:D428 => Phab:D459


Comment:

 The patch now includes tests, as requested.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9763#comment:3>
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