test: Add more tests related to types exposed from a component.

Closes #885

Closes #958

Author: mvuksano

test/core_dom/compiler_spec.dart

@@ -553,6 +553,13 @@ void main() {
         toBe(PublishModuleAttrDirective._injector.get(PublishModuleDirectiveSuperType));
       });
 
+      it('should expose PublishModuleDirectiveSuperType as PublishModuleDirectiveSuperType', () {
+        _.compile(r'<div publish-types probe="publishModuleProbe"></div>');
+        var probe = _.rootScope.context['publishModuleProbe'];
+        var directive = probe.injector.get(PublishModuleDirectiveSuperType);
+        expect(directive is PublishModuleAttrDirective).toBeTruthy();
+      });
+
       it('should allow repeaters over controllers', async((Logger logger) {
         _.compile(r'<log ng-repeat="i in [1, 2]"></log>');
         _.rootScope.apply();

test/directive/ng_form_spec.dart

@@ -143,6 +143,13 @@ void main() {
         expect(form).toBeValid();
       });
 
+      it('should expose NgForm as NgControl', (Scope scope, TestBed _) {
+        _.compile('<form name="myForm" probe="formProbe"><input type="text" /></form>');
+        scope.apply();
+
+        expect(scope.context['formProbe'].injector.get(NgControl) is NgForm).toBeTruthy();
+      });
+
       it('should add and remove the correct flags when set to valid and to invalid',
         (Scope scope, TestBed _) {
 

test/routing/ng_bind_route_spec.dart

@@ -43,6 +43,12 @@ main() {
           .toEqual('all');
     }));
 
+    it('should expose NgBindRoute as RouteProvider', async(() {
+      Element root = _.compile(
+          '<div ng-bind-route="library"><div probe="routeProbe"></div></div>');
+      expect(_.rootScope.context['routeProbe'].injector.get(RouteProvider) is NgBindRoute).toBeTruthy();
+    }));
+
   });
 }
 

test/routing/ng_view_spec.dart

@@ -21,9 +21,9 @@ main() {
       router = _router;
 
       templates.put('foo.html', new HttpResponse(200,
-          '<h1>Foo</h1>'));
+          '<h1 probe="p">Foo</h1>'));
       templates.put('bar.html', new HttpResponse(200,
-          '<h1>Bar</h1>'));
+          '<h1 probe="p">Bar</h1>'));
     });
 
 
@@ -47,6 +47,15 @@ main() {
       expect(root.text).toEqual('Foo');
     }));
 
+    it('should expose NgView as RouteProvider', async(() {
+      _.compile('<ng-view probe="m"></ng-view>');
+      router.route('/foo');
+      microLeap();
+      _.rootScope.apply();
+
+      expect(_.rootScope.context['p'].injector.get(RouteProvider) is NgView).toBeTruthy();
+    }));
+
 
     it('should switch template when route is already active', async(() {
       // Force the routing system to initialize.