Monkeypatch the CFFI Verifier to prevent the implicit compile

![ma9vmor](https://cloud.githubusercontent.com/assets/145979/5050783/00fb220e-6bff-11e4-88f7-1d423dd9388e.gif)

I can add a unit test that ensures this function raises a ``RuntimeError``, though I'm not sure it's really a useful test. Better would be to figure out how to add a test that relies on the implicit compile and make sure it explodes.