style(docs-infra): fix docs examples for tslint rule semicolon (angular#38143)

This commit updates the docs examples to be compatible with the
`semicolon` tslint rule.

This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.

PR Close angular#38143

Author: gkalpak

aio/content/examples/built-in-directives/src/app/app.component.ts

@@ -84,7 +84,7 @@ export class AppComponent implements OnInit {
   }
 
   resetList() {
-    this.resetItems()
+    this.resetItems();
     this.itemsWithTrackByCountReset = 0;
     this.itemsNoTrackByCount = ++this.itemsNoTrackByCount;
   }

aio/content/examples/dependency-injection-in-action/src/app/runners-up.ts

@@ -22,5 +22,5 @@ export function runnersUpFactory(take: number) {
           .join(', ');
 // #docregion factory-synopsis
   };
-};
+}
 // #enddocregion factory-synopsis

aio/content/examples/dependency-injection/src/app/providers.component.ts

@@ -107,7 +107,7 @@ export class OldLogger {
   logs: string[] = [];
   log(message: string) {
     throw new Error('Should not call the old logger!');
-  };
+  }
 }
 
 @Component({

aio/content/examples/elements/e2e/src/app.e2e-spec.ts

@@ -14,7 +14,7 @@ describe('Elements', () => {
   const waitForText = (elem: ElementFinder) => {
     // Waiting for the element to have some text, makes the tests less flaky.
     browser.wait(async () => /\S/.test(await elem.getText()), 5000);
-  }
+  };
 
   beforeEach(() => browser.get(''));
 

aio/content/examples/form-validation/e2e/src/app.e2e-spec.ts

@@ -160,7 +160,7 @@ function expectFormIsInvalid() {
 
 function triggerAlterEgoValidation() {
   // alterEgo has updateOn set to 'blur', click outside of the input to trigger the blur event
-  element(by.css('app-root')).click()
+  element(by.css('app-root')).click();
 }
 
 function waitForAlterEgoValidation() {

aio/content/examples/form-validation/src/app/shared/identity-revealed.directive.ts

@@ -19,7 +19,7 @@ export const identityRevealedValidator: ValidatorFn = (control: FormGroup): Vali
 })
 export class IdentityRevealedValidatorDirective implements Validator {
   validate(control: AbstractControl): ValidationErrors {
-    return identityRevealedValidator(control)
+    return identityRevealedValidator(control);
   }
 }
 // #enddocregion cross-validation-directive

aio/content/examples/hierarchical-dependency-injection/src/app/hero-tax-return.component.ts

@@ -30,9 +30,9 @@ export class HeroTaxReturnComponent {
   onCanceled()  {
     this.flashMessage('Canceled');
     this.heroTaxReturnService.restoreTaxReturn();
-  };
+  }
 
-  onClose() { this.close.emit(); };
+  onClose() { this.close.emit(); }
 
   onSaved() {
     this.flashMessage('Saved');

aio/content/examples/http/src/app/request-cache.service.ts

@@ -12,7 +12,7 @@ export interface RequestCacheEntry {
 // #docregion request-cache
 export abstract class RequestCache {
   abstract get(req: HttpRequest<any>): HttpResponse<any> | undefined;
-  abstract put(req: HttpRequest<any>, response: HttpResponse<any>): void
+  abstract put(req: HttpRequest<any>, response: HttpResponse<any>): void;
 }
 // #enddocregion request-cache
 

aio/content/examples/ngmodules/e2e/src/app.e2e-spec.ts

@@ -97,11 +97,11 @@ describe('NgModule-example', function () {
 
         newContactButton.click().then(function () {
           input.click();
-          nextButton.click()
+          nextButton.click();
           expect(contacts.validationError.getText()).toBe('Name is required.');
           input.click();
           contacts.input.sendKeys('Watson');
-          saveButton.click()
+          saveButton.click();
           expect(contacts.contactNameHeader.getText()).toBe('Awesome Watson');
 
         });

aio/content/examples/router/src/app/crisis-center/mock-crises.ts

@@ -6,4 +6,4 @@ export const CRISES: Crisis[] = [
   { id: 2, name: 'Sky Rains Great White Sharks' },
   { id: 3, name: 'Giant Asteroid Heading For Earth' },
   { id: 4, name: 'Procrastinators Meeting Delayed Again' },
-]
+];