[GHC] #8569: ASSERT in testcase type-rep, only in some ways:

[GHC]

#8569: ASSERT in testcase type-rep, only in some ways:
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        Reporter:  nomeata           |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Test Suite        |          Version:  7.7
      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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Comment (by nomeata):

 I have a freshly cleaned and built master checkout here, and it is
 reproducible again (using `make -C testsuite TEST="type-rep"`)

 Note that this patch is marked as `skip()` when running `make -C testsuite
 fast`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8569#comment:2>
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