chore(Grunt): upgrade ng-closure-runner to 0.2.2

[ksheedlo]

This is not pressing for tomorrow, but let's get it in by the end of the week. I refactored the compiler somewhat ahead of implementing typed MinErr, so this is a new version I released today.

Since the change is so small, I'm actually okay if we ignore this for now, but if it doesn't break anything then why not.

[mary-poppins]

Thanks for the PR!

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