Silenced "isVisible" deprecation
Silenced "isVisible" deprecation

no issue

- it's being caused by the `ember-infinity` addon and was making test output rather noisy
- revert once `ember-inifinity` has a release removing `isVisible` and we've upgraded

TryGhost/Ghost-Admin,TryGhost/Ghost-Admin,kevinansfield/Ghost-Admin,kevinansfield/Ghost-Admin