Introduce unfoundState type from $stateNotFound event (#8894)

angular-ui-router/angular-ui-router-tests.ts

@@ -141,6 +141,8 @@ class UrlLocatorTestService implements IUrlLocatorTestService {
         private $state: ng.ui.IStateService
     ) {
         $rootScope.$on("$locationChangeSuccess", (event: ng.IAngularEvent) => this.onLocationChangeSuccess(event));
+        $rootScope.$on('$stateNotFound', (event: ng.IAngularEvent, unfoundState: ng.ui.IUnfoundState, fromState: ng.ui.IState, fromParams: {}) => 
+                                              this.onStateNotFound(event, unfoundState, fromState, fromParams));
     }
 
     public currentUser: any;
@@ -162,6 +164,15 @@ class UrlLocatorTestService implements IUrlLocatorTestService {
             });
         }
     }
+    
+     private onStateNotFound(event: ng.IAngularEvent,
+                             unfoundState: ng.ui.IUnfoundState,
+                             fromState: ng.ui.IState,
+                             fromParams: {}) {
+        var unfoundTo: string = unfoundState.to;
+        var unfoundToParams: {} = unfoundState.toParams;
+        var unfoundOptions: ng.ui.IStateOptions = unfoundState.options 
+    }
 
     private stateServiceTest() {
         this.$state.go("myState");

angular-ui-router/angular-ui-router.d.ts

@@ -100,6 +100,12 @@ declare namespace angular.ui {
         cache?: boolean;
     }
 
+    interface IUnfoundState {
+        to: string,
+        toParams: {},
+        options: IStateOptions
+    }
+    
     interface IStateProvider extends angular.IServiceProvider {
         state(name:string, config:IState): IStateProvider;
         state(config:IState): IStateProvider;