Adds panic to console.log

[dmarcos]

No description provided.

[hoppipolla-critic-bot]

Critic review: https://critic.hoppipolla.co.uk/r/3835

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[highfive]

Thanks for the pull request, and welcome! The Servo team is excited to review your changes, and you should hear from @jdm (or someone else) soon.

[jdm]

Sorry if I wasn't clear - I meant that this is a change you could make locally for testing purposes. We definitely do not want to make the script task panic every time a page uses console.log in a JS script.

[dmarcos]

@jdm This PR is was not meant to be merged yet. It was just to show you the progress I was making. How do you want me to show you work in progress?

[jdm]

Oh, you can just push to a branch and link to that in github/IRC/email comments.