[PATCH] Add per-test timeouts to lit

[Jonathan Roelofs]

Re-work Watchdog to support being used as a context manager.


http://reviews.llvm.org/D6584

Files:
  utils/lit/lit/LitConfig.py
  utils/lit/lit/TestRunner.py
  utils/lit/lit/formats/base.py
  utils/lit/lit/main.py
  utils/lit/lit/util.py
  utils/lit/tests/Inputs/timeout/infloop.py
  utils/lit/tests/Inputs/timeout/lit.cfg
  utils/lit/tests/Inputs/timeout/short.py
  utils/lit/tests/timeout.py

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