[GHC] #8322: Report all missing module, not just the first or last

[GHC]

#8322: Report all missing module, not just the first or last
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        Reporter:  nomeata           |            Owner:  nomeata
            Type:  feature request   |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          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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Changes (by nomeata):

 * owner:   => nomeata


Comment:

 I gave it a shot (branch wip/T8322,
 http://git.haskell.org/ghc.git/commitdiff/f3d1e79c8f22e2c96b49050e14c250b17f2a7c56)

 It was easy for `-c`, a small change in `RnNames`. It was not so easy for
 `--make`, where I had add a bunch of `Eithers` to the return value of a
 few functions. I’m happy to take advise about how to structure that more
 typical for GHC code.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8322#comment:1>
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