[GHC] #15786: Hi Haddock: Enable haddock to generate docs from .hi-files

[GHC]

#15786: Hi Haddock: Enable haddock to generate docs from .hi-files
-------------------------------------+-------------------------------------
           Reporter:  sjakobi        |             Owner:  (none)
               Type:  feature        |            Status:  new
  request                            |
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.6.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):  Phab:D5067     |         Wiki Page:
-------------------------------------+-------------------------------------


-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15786>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler