[parrot/parrot] 40f2a7: [t] Improve timing of task_kill

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/parrot/parrot
  Commit: 40f2a7026d417325cf09332b5368300576391653
      https://github.com/parrot/parrot/commit/40f2a7026d417325cf09332b5368300576391653
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2012-12-13 (Thu, 13 Dec 2012)

  Changed paths:
    M t/pmc/task.t

  Log Message:
  -----------
  [t] Improve timing of task_kill

The timing was too instable. Also rename the task and code.