Fix name collision when closing over scopes in the compiler.
Fix name collision when closing over scopes in the compiler.

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