[GHC] #15963: Test suite should report timeouts as timeouts

[GHC]

#15963: Test suite should report timeouts as timeouts
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           Reporter:  osa1           |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Test Suite     |           Version:
           Keywords:  newcomer       |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Currently the test suite reports timeouts as "bad exit code". I think it
 should instead report timeouts as timeouts.

 Motivation: Often when working on a change that may make things slower (at
 least during development) I'm interested in seeing what tests are timing
 out vs. failing. Currently I have to save the whole test suite log to a
 file and then grep in the file to manually make a list of such tests.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15963>
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