- Introduces `CompilerFactory` which can be part of a `PlatformRef`.
- Introduces `WorkerAppModule`, `WorkerUiModule`, `ServerModule`
- Introduces `serverDynamicPlatform` for applications using runtime compilation
  on the server.
- Changes browser bootstrap for runtime and offline compilation (see below for an example).
  * introduces `bootstrapModule` and `bootstrapModuleFactory` in `@angular/core`
  * introduces new `browserDynamicPlatform` in `@angular/platform-browser-dynamic
- Changes `initTestEnvironment` (which used to be `setBaseTestProviders`) to not take a compiler factory any more (see below for an example).
BREAKING CHANGE:
## Migration from `setBaseTestProviders` to `initTestEnvironment`:
- For the browser platform:
  BEFORE:
  ```
  import {setBaseTestProviders} from ‘@angular/core/testing’;
  import {TEST_BROWSER_DYNAMIC_PLATFORM_PROVIDERS,
      TEST_BROWSER_DYNAMIC_APPLICATION_PROVIDERS} from ‘@angular/platform-browser-dynamic/testing’;
  setBaseTestProviders(TEST_BROWSER_DYNAMIC_PLATFORM_PROVIDERS,
      TEST_BROWSER_DYNAMIC_APPLICATION_PROVIDERS);
  ```
  AFTER:
  ```
  import {initTestEnvironment} from ‘@angular/core/testing’;
  import {browserDynamicTestPlatform,
      BrowserDynamicTestModule} from ‘@angular/platform-browser-dynamic/testing’;
  initTestEnvironment(
      BrowserDynamicTestModule,
      browserDynamicTestPlatform());
  ```
- For the server platform:
  BEFORE:
  ```
  import {setBaseTestProviders} from ‘@angular/core/testing’;
  import {TEST_SERVER_PLATFORM_PROVIDERS,
      TEST_SERVER_APPLICATION_PROVIDERS} from ‘@angular/platform-server/testing/server’;
  setBaseTestProviders(TEST_SERVER_PLATFORM_PROVIDERS,
      TEST_SERVER_APPLICATION_PROVIDERS);
  ```
  AFTER:
  ```
  import {initTestEnvironment} from ‘@angular/core/testing’;
  import {serverTestPlatform,
      ServerTestModule} from ‘@angular/platform-browser-dynamic/testing’;
  initTestEnvironment(
      ServerTestModule,
      serverTestPlatform());
  ```
## Bootstrap changes
```
@AppModule({
  modules: [BrowserModule],
  precompile: [MainComponent],
  providers: […], // additional providers
  directives: […], // additional platform directives
  pipes: […] // additional platform pipes
})
class MyModule {
  constructor(appRef: ApplicationRef) {
    appRef.bootstrap(MainComponent);
  }
}
// offline compile
import {browserPlatform} from ‘@angular/platform-browser’;
import {bootstrapModuleFactory} from ‘@angular/core’;
bootstrapModuleFactory(MyModuleNgFactory, browserPlatform());
// runtime compile long form
import {browserDynamicPlatform} from ‘@angular/platform-browser-dynamic’;
import {bootstrapModule} from ‘@angular/core’;
bootstrapModule(MyModule, browserDynamicPlatform());
```
Closes #9922
Part of #9726
		
	
			
		
			
				
	
	
		
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			TypeScript
		
	
	
	
	
	
| /**
 | |
|  * @license
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|  * Copyright Google Inc. All Rights Reserved.
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|  *
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|  * Use of this source code is governed by an MIT-style license that can be
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|  * found in the LICENSE file at https://angular.io/license
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|  */
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| 
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| import {AppModuleFactory, AppModuleRef, bootstrapModuleFactory} from '@angular/core';
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| import {ComponentFixture} from '@angular/core/testing';
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| import {serverPlatform} from '@angular/platform-server';
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| 
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| import {MainModuleNgFactory} from '../src/module.ngfactory';
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| 
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| export function createModule<M>(factory: AppModuleFactory<M>): AppModuleRef<M> {
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|   return bootstrapModuleFactory(factory, serverPlatform());
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| }
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| 
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| export function createComponent<C>(
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|     comp: {new (...args: any[]): C},
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|     moduleFactory: AppModuleFactory<any> = null): ComponentFixture<C> {
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|   if (!moduleFactory) {
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|     moduleFactory = MainModuleNgFactory;
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|   }
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|   const moduleRef = createModule(moduleFactory);
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|   const compRef =
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|       moduleRef.componentFactoryResolver.resolveComponentFactory(comp).create(moduleRef.injector);
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|   return new ComponentFixture(compRef, null, null);
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| }
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