[MacPorts] #25558: ghc: update to latest version

[MacPorts]

#25558: ghc: update to latest version
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 Reporter:  jwiegley@…          |       Owner:  gwright@…           
     Type:  update              |      Status:  assigned            
 Priority:  Normal              |   Milestone:                      
Component:  ports               |     Version:                      
 Keywords:                      |        Port:  ghc ghc-devel       
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Comment(by pusteblumekuchen@…):

 7.2.2 is out since November 2011. Is there any progress on updating the
 port to that version?

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Ticket URL: <https://trac.macports.org/ticket/25558#comment:19>
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