[GHC] #8426: one-shot compilation + TH doesn't see instances that is seen in batch mode

[GHC]

#8426: one-shot compilation + TH doesn't see instances that is seen in batch mode
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        Reporter:  errge    |            Owner:
            Type:  bug      |           Status:  patch
        Priority:  normal   |        Milestone:  7.8.1
       Component:           |          Version:  7.7
  Template Haskell          |         Keywords:
      Resolution:           |     Architecture:  Unknown/Multiple
Operating System:           |       Difficulty:  Moderate (less than a day)
  Unknown/Multiple          |       Blocked By:
 Type of failure:  Other    |  Related Tickets:  #7867
       Test Case:           |
        Blocking:  8398     |
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Changes (by errge):

 * status:  new => patch
 * blocking:   => 8398
 * milestone:   => 7.8.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8426#comment:6>
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