fix(@schematics/angular): rename e2e PO utility function

Author: EmmanuelDemey

packages/schematics/angular/e2e/files/src/app.e2e-spec.ts

@@ -9,6 +9,6 @@ describe('workspace-project App', () => {
 
   it('should display welcome message', () => {
     page.navigateTo();
-    expect(page.getParagraphText()).toEqual('Welcome to <%= relatedAppName %>!');
+    expect(page.getTitleText()).toEqual('Welcome to <%= relatedAppName %>!');
   });
 });

packages/schematics/angular/e2e/files/src/app.po.ts

@@ -5,7 +5,7 @@ export class AppPage {
     return browser.get('/');
   }
 
-  getParagraphText() {
+  getTitleText() {
     return element(by.css('<%= rootSelector %> h1')).getText();
   }
 }

tests/angular_devkit/build_angular/hello-world-app/e2e/app.e2e-spec.ts

@@ -16,6 +16,6 @@ describe('hello-world-app App', () => {
 
   it('should display welcome message', () => {
     page.navigateTo();
-    expect(page.getParagraphText()).toEqual('Welcome to app!');
+    expect(page.getTitleText()).toEqual('Welcome to app!');
   });
 });

tests/angular_devkit/build_angular/hello-world-app/e2e/app.po.ts

@@ -12,7 +12,7 @@ export class AppPage {
     return browser.get('/');
   }
 
-  getParagraphText() {
+  getTitleText() {
     return element(by.css('app-root h1')).getText();
   }
 }