[GHC] #8025: "During interactive linking, GHCi couldn't find the following symbol" typechecker error with TemplateHaskell involved

[GHC]

#8025: "During interactive linking, GHCi couldn't find the following symbol"
typechecker error with TemplateHaskell involved
-------------------------------------+-------------------------------------
              Reporter:  mojojojo    |            Owner:
                  Type:  bug         |           Status:  infoneeded
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.6.3
  (Type checker)                     |         Keywords:
            Resolution:              |     Architecture:  x86
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  Incorrect   |  Related Tickets:
  warning at compile-time            |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by thomie):

 * status:  new => infoneeded
 * os:  MacOS X => Unknown/Multiple


Comment:

 {{{
 $ sudo apt-get install p7zip
 $ 7zr x supabug.7z
 }}}

 Does anyone have an example that doesn't depend on `lens` or `yesod`.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8025#comment:3>
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