[GHC] #8407: Module re-exports at the package level

[GHC]

#8407: Module re-exports at the package level
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        Reporter:  nomeata           |            Owner:
            Type:  feature request   |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Package system    |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by ezyang):

 Hello nomeata, are you still working on this? This is on the hotpath for
 Backpack implementation work so I will probably go ahead and implement
 this if you are not working on it.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8407#comment:3>
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