[GHC] #15915: Add CI for integer-simple

[GHC]

#15915: Add CI for integer-simple
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           Reporter:  bgamari        |             Owner:  bgamari
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.6.3
          Component:  Continuous     |           Version:  8.6.2
  Integration                        |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15915>
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