Fix AVM1 event broadcaster to correctly pass on arguments to listeners
Fix AVM1 event broadcaster to correctly pass on arguments to listeners

Using `Array.prototype.slice.call(arguments, 1)` didn't work at all, but `...args` does.

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