[GHC] #12225: Warn if test setting has no effect (e.g. compile_timeout_multiplier on run_command)

[GHC]

#12225: Warn if test setting has no effect (e.g. compile_timeout_multiplier on
run_command)
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           Reporter:  ezyang         |             Owner:
               Type:  bug            |            Status:  new
           Priority:  low            |         Milestone:
          Component:  Test Suite     |           Version:  8.0.1
           Keywords:                 |  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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 I recently wrote this line in an `all.T`. Can you figure out how it's
 wrong?

 {{{
 test('tc266',
      [extra_clean(['Tc266.hi-boot', 'Tc266.o-boot', 'Tc266a.hi',
 'Tc266a.o', 'Tc266.hi', 'Tc266.o']), compile_timeout_multiplier(0.01)] ,
      run_command,
      ['$MAKE -s --no-print-directory tc266'])
 }}}

 That's right, it should be `run_timeout_multiplier`, not compile timeout
 multiplier, which is literally a no-op for this test. There should be a
 warning if this happens.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12225>
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