[GHC] #9977: Nicer imports

[GHC]

#9977: Nicer imports
-------------------------------------+-------------------------------------
        Reporter:  tolysz            |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  lowest            |               Milestone:
       Component:  Compiler          |                 Version:  7.11
  (Parser)                           |                Keywords:  imports
      Resolution:                    |            Architecture:
Operating System:  Unknown/Multiple  |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by tolysz):

 {{{#!hs
 import
   Data.ByteString
       @
       Lazy
 import
   Data.ByteString {@, Lazy}

 import Data.ByteString {@, Lazy}

 }}}

 You got me, there needs to be a symbol for indicating current node, and
 not sure which would be the best one `@` here is just an example.
 Curly brackets to de-sugaring to indentation would help as well :)

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9977#comment:2>
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