Fix hasOwnProperty bug, need to be more careful with falsy values.
Fix hasOwnProperty bug, need to be more careful with falsy values.

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