I just moved this expectation few lines above (in `child.$on` listener function [L1725](https://github.com/ncuillery/angular.js/blob/fix/test/ng/rootScopeSpec.js#L1725).

I made this to be consistent with the existing similar test case for `$emit` [L1570](https://github.com/ncuillery/angular.js/blob/fix/test/ng/rootScopeSpec.js#L1570).