[GHC] #15363: Do some cleaning up of the testsuite driver

[GHC]

#15363: Do some cleaning up of the testsuite driver
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        Reporter:  lantti            |                Owner:  lantti
            Type:  task              |               Status:  new
        Priority:  low               |            Milestone:  8.6.1
       Component:  Test Suite        |              Version:  8.4.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by lantti):

 It seems that timeout.hs is even not fully functional under minTTY/msys2
 shell at the moment. Something along the way intercepts Ctrl-c and kills
 the whole process tree without giving the timeout program or the testsuite
 cleanup code (stopNow(), etc) a chance to react to it. The bright side to
 this is that those cleanup routines were mostly concerned with eliminating
 stray processes which the shell (or whatever intercepts the Ctrl-C) seems
 to do for us anyway.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15363#comment:5>
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