[GHC] #9719: Improve `mkInteger` interface

[GHC]

#9719: Improve `mkInteger` interface
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              Reporter:  hvr         |            Owner:
                  Type:  task        |           Status:  new
              Priority:  low         |        Milestone:  7.12.1
             Component:  Compiler    |          Version:
            Resolution:              |         Keywords:  Integer
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:              |       Blocked By:
  None/Unknown                       |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by nominolo):

 * cc: nominolo (added)


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9719#comment:2>
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