build(aio): lint examples

aio/content/examples/testing/src/app/bag/bag.no-testbed.spec.ts

@@ -3,7 +3,7 @@ import { DependentService, FancyService } from './bag';
 
 ///////// Fakes /////////
 export class FakeFancyService extends FancyService {
-  value: string = 'faked value';
+  value = 'faked value';
 }
 ////////////////////////
 // #docregion FancyService

aio/content/examples/testing/src/app/bag/bag.spec.ts

@@ -677,5 +677,5 @@ class FakeGrandchildComponent { }
 
 @Injectable()
 class FakeFancyService extends FancyService {
-  value: string = 'faked value';
+  value = 'faked value';
 }

aio/content/examples/testing/src/app/bag/bag.ts

@@ -20,7 +20,7 @@ export class Hero {
 // #docregion FancyService
 @Injectable()
 export class FancyService {
-  protected value: string = 'real value';
+  protected value = 'real value';
 
   getValue() { return this.value; }
   setValue(value: string) { this.value = value; }

aio/content/examples/testing/src/app/model/test-heroes.ts

@@ -1,7 +1,7 @@
 // #docregion
 import { Hero } from './hero';
 
-export var HEROES: Hero[] = [
+export const HEROES: Hero[] = [
   new Hero(11, 'Mr. Nice'),
   new Hero(12, 'Narco'),
   new Hero(13, 'Bombasto'),

aio/content/examples/testing/src/app/model/testing/fake-hero.service.ts

@@ -5,7 +5,7 @@ export { HeroService } from '../hero.service';
 import { Hero }        from '../hero';
 import { HeroService } from '../hero.service';
 
-export var HEROES: Hero[] = [
+export const HEROES: Hero[] = [
   new Hero(41, 'Bob'),
   new Hero(42, 'Carol'),
   new Hero(43, 'Ted'),