[GHC] #9977: Nicer imports

[GHC]

#9977: Nicer imports
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              Reporter:  tolysz      |             Owner:
                  Type:  feature     |            Status:  new
  request                            |         Milestone:
              Priority:  lowest      |           Version:  7.11
             Component:  Compiler    |  Operating System:  Unknown/Multiple
  (Parser)                           |   Type of failure:  None/Unknown
              Keywords:  imports     |        Blocked By:
          Architecture:              |   Related Tickets:
  Unknown/Multiple                   |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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 Hi,
 I wonder if we could have

 {{{#!hs
 import
   Data
     A
     B (ba, bb, bc)
     C  as C
     C1 as C1 (ca,cb,cc)
     D qualified
     E as E qualified
     F as F qualified (fa, fb, fc)
   Libs.Other

 --  Data.E qualified as E -- both valid
 --  Data.F qualified as F (fa, fb, fc)
 }}}

 to desugar to

 {{{#!hs
 import           Data.A
 import           Data.B (ba, bb, bc)
 import           Data.C as C
 import qualified Data.D
 import qualified Data.E as E
 import qualified Data.F as F (fa, fb, fc)
 import Libs.Other
 }}}

 so we could make syntax more dry?
 What it does if there is indentation it uses previous levels as prefix

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9977>
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