[GHC] #9252: Generalize hs-boot files to be more like module signatures

[GHC]

#9252: Generalize hs-boot files to be more like module signatures
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              Reporter:  ezyang      |            Owner:  ezyang
                  Type:  feature     |           Status:  new
  request                            |        Milestone:
              Priority:  normal      |          Version:  7.8.2
             Component:  Compiler    |         Keywords:  backpack
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D130   |
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Changes (by thoughtpolice):

 * differential:  https://phabricator.haskell.org/D130 => Phab:D130


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9252#comment:3>
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