This changes Angular so that it can be used without reflection (assuming a codegen for injectors).
BREAKIKNG CHANGE:
- Drops `APP_COMPONENT` provider. Instead, inject
`ApplicationRef` and read its `componentTypes` property.
- long form bootstrap has changed into the following:
```
var platform = createPlatform(ReflectiveInjector.resolveAndCreate(BROWSER_PROVIDERS));
var appInjector =
ReflectiveInjector.resolveAndCreate([BROWSER_APP_PROVIDERS, appProviders], platform.injector);
coreLoadAndBootstrap(appInjector, MyApp);
```
BREAKING CHANGE
From the app thread, in both TypeScript and Dart, you bootstrap the app
using `application` instead of `asyncApplication`.
Before:
```TypeScript
platform([WORKER_APP_PLATFORM])
.asyncApplication(setupWebWorker, optionalProviders?)
.then((ref) => ref.bootstrap(RootComponent));
```
Now:
```TypeScript
platform([WORKER_APP_PLATFORM])
.application([WORKER_APP_APPLICATION])
.bootstrap(RootComponent);
```
closes#5857Closes#5862
Tobias Bosch
Jason Teplitz