Avoid error when enumerating of undefined value in AVM1.
Avoid error when enumerating of undefined value in AVM1.

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