test(router): add tests for router.d.ts

Closes #3282

modules/angular2/router.ts

@@ -16,8 +16,10 @@ export {HTML5LocationStrategy} from './src/router/html5_location_strategy';
 export {Location, appBaseHrefToken} from './src/router/location';
 export {Pipeline} from './src/router/pipeline';
 export * from './src/router/route_config_decorator';
+export * from './src/router/route_definition';
 export {OnActivate, OnDeactivate, OnReuse, CanDeactivate, CanReuse} from './src/router/interfaces';
 export {CanActivate} from './src/router/lifecycle_annotations';
+export {Instruction} from './src/router/instruction';
 
 import {LocationStrategy} from './src/router/location_strategy';
 import {HTML5LocationStrategy} from './src/router/html5_location_strategy';