[MacPorts] #49461: Update GHC to 7.10.2

[MacPorts]

#49461: Update GHC to 7.10.2
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 Reporter:  hotpxless@…  |      Owner:  macports-tickets@…
     Type:  update       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.4
 Keywords:               |       Port:  ghc
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 Hi.

 GHC 7.10 has been out for a while. Is it possible to update to the latest
 version? It does offer some new features and would be great to be able to
 use them.

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Ticket URL: <https://trac.macports.org/ticket/49461>
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