Angular 1.3.x has an ng-strict-di directive that is placed on the same element as the ng-app directive. This element causes your app to throw an error whenever dependencies have not been annotated. While it still doesn’t give you the line number of the offending code, it does give you the function with its parameters (i.e. function($scope, myServiceName)) which is hopefully unique enough that you can find it pretty quickly in a good code edit.
A good overview of the directive: ng-strict-di.