Updates the app itself to reflect the result of using the `experimentalIvy` flag on the CLI.
The result is similar to:
npx @angular/cli@next new cli-hello-world-ivy --experimental-ivy --defaults
But replaces the current (cli `7.2.0-rc.0`) `renderComponent` bootstrap with the usual `platformBrowserDynamic` one.
It also keeps what the app did (display a pipe, tests it).
PR Close#27797
This integration test was created from a vanilla CLI generated
project with the following modifications:
* remove `PercentPipe` usage from `app.component.html`
- these are not yet supported by ivy
* changed `ng test` in `package.json` to only to `ng build`
- right now we can only confirm that the app will build
* hard-code `ngDevMode` in `index.html`
- the CLI does not yet set this correctly
PR Close#26403