fix(state): Inject $state at runtime to force initialization

Closes #2574

Author: christopherthielen

src/state.js

@@ -1469,4 +1469,11 @@ function $StateProvider(   $urlRouterProvider,   $urlMatcherFactory) {
 
 angular.module('ui.router.state')
   .factory('$stateParams', function () { return {}; })
-  .provider('$state', $StateProvider);
+  .provider('$state', $StateProvider)
+  // Inject $state to initialize when entering runtime. #2574
+  .run(['$injector', function ($injector) {
+    // Allow tests (stateSpec.js) to turn this off by defining this constant
+    if (!$injector.get("$noAutoInjectStateService")) {
+      $injector.get('$state');
+    }
+  }]);

test/stateSpec.js

@@ -2,6 +2,7 @@ describe('state', function () {
 
   var stateProvider, locationProvider, templateParams, ctrlName, template;
 
+  angular.module('ui.router').constant("$noAutoInjectStateService", true);
   beforeEach(module('ui.router', function($locationProvider) {
     locationProvider = $locationProvider;
     $locationProvider.html5Mode(false);