Fixes a bug when using params.view in the SWF (Flash Pro property)

If the params.view was already defined in the SWF using e.g. Flash Pro, and the swf is re-used instead of re-loaded (essential for IOS), the params.view property is no longer a String on the 2nd use (e.g. restart level): It is already an Image object. This caused ObjectMakerStarling to crash here, as params view.length is not defined on an Image object.