Bug 1088377 - Part 2: throw NullPointerError for null/undefined `url` values in AVM2's `navigateToURL`
Bug 1088377 - Part 2: throw NullPointerError for null/undefined `url` values in AVM2's `navigateToURL`

Much more sensible than what AVM1 does.

mbebenita/shumway,mozilla/shumway,mozilla/shumway,tschneidereit/shumway,mozilla/shumway,mbebenita/shumway,mbebenita/shumway,yurydelendik/shumway,yurydelendik/shumway,yurydelendik/shumway,mbebenita/shumway,mozilla/shumway,mozilla/shumway,tschneidereit/shumway,yurydelendik/shumway,yurydelendik/shumway,tschneidereit/shumway,tschneidereit/shumway,tschneidereit/shumway,mbebenita/shumway,mozilla/shumway,tschneidereit/shumway,tschneidereit/shumway,yurydelendik/shumway,mozilla/shumway,mbebenita/shumway,yurydelendik/shumway,mbebenita/shumway,tschneidereit/shumway,mozilla/shumway,yurydelendik/shumway,mbebenita/shumway