[GHC] #2182: ghc sessions (--make, --interactive, ghc api) erroneously retain instances

[GHC]

#2182: ghc sessions (--make, --interactive, ghc api) erroneously retain instances
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              Reporter:  claus       |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:  7.10.1
             Component:  Compiler    |          Version:  6.9
  (Type checker)                     |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  GHC         |  Related Tickets:
  accepts invalid program            |
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D488   |
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Changes (by simonpj):

 * owner:  ezyang =>
 * status:  closed => new
 * resolution:  fixed =>


Comment:

 Edward, would you care to add a regression test?  I'll re-open for that
 purpose.

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2182#comment:14>
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