[GHC] #11774: Regression on GHC 8 branch (vs 7.10.3) when using the GHC API to parse code that uses TH

[GHC]

#11774: Regression on GHC 8 branch (vs 7.10.3) when using the GHC API to parse code
that uses TH
-------------------------------------+-------------------------------------
        Reporter:  SimonHengel       |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  GHC API           |              Version:  8.0.1-rc2
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by thomie):

 * component:  Compiler => GHC API


Comment:

 Reproducible with HEAD (ghc-8.1.20160515). First run `cabal install ghc-
 paths syb`. Then run `ghci -package ghc Extract.hs`

 Solution / workaround: use `ghci -fexternal-interpreter`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11774#comment:2>
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