feat(core): speed up view creation via code gen for view factories.

BREAKING CHANGE:
- Platform pipes can only contain types and arrays of types,
  but no bindings any more.
- When using transformers, platform pipes need to be specified explicitly
  in the pubspec.yaml via the new config option
  `platform_pipes`.
- `Compiler.compileInHost` now returns a `HostViewFactoryRef`
- Component view is not yet created when component constructor is called.
  -> use `onInit` lifecycle callback to access the view of a component
- `ViewRef#setLocal` has been moved to new type `EmbeddedViewRef`
- `internalView` is gone, use `EmbeddedViewRef.rootNodes` to access
  the root nodes of an embedded view
- `renderer.setElementProperty`, `..setElementStyle`, `..setElementAttribute` now
  take a native element instead of an ElementRef
- `Renderer` interface now operates on plain native nodes,
  instead of `RenderElementRef`s or `RenderViewRef`s

Closes #5993

modules/angular2/src/common/forms/directives/checkbox_value_accessor.ts

@@ -27,7 +27,7 @@ export class CheckboxControlValueAccessor implements ControlValueAccessor {
   constructor(private _renderer: Renderer, private _elementRef: ElementRef) {}
 
   writeValue(value: any): void {
-    this._renderer.setElementProperty(this._elementRef, 'checked', value);
+    this._renderer.setElementProperty(this._elementRef.nativeElement, 'checked', value);
   }
   registerOnChange(fn: (_: any) => {}): void { this.onChange = fn; }
   registerOnTouched(fn: () => {}): void { this.onTouched = fn; }

modules/angular2/src/common/forms/directives/default_value_accessor.ts

@@ -31,7 +31,7 @@ export class DefaultValueAccessor implements ControlValueAccessor {
 
   writeValue(value: any): void {
     var normalizedValue = isBlank(value) ? '' : value;
-    this._renderer.setElementProperty(this._elementRef, 'value', normalizedValue);
+    this._renderer.setElementProperty(this._elementRef.nativeElement, 'value', normalizedValue);
   }
 
   registerOnChange(fn: (_: any) => void): void { this.onChange = fn; }

modules/angular2/src/common/forms/directives/number_value_accessor.ts

@@ -31,7 +31,7 @@ export class NumberValueAccessor implements ControlValueAccessor {
   constructor(private _renderer: Renderer, private _elementRef: ElementRef) {}
 
   writeValue(value: number): void {
-    this._renderer.setElementProperty(this._elementRef, 'value', value);
+    this._renderer.setElementProperty(this._elementRef.nativeElement, 'value', value);
   }
 
   registerOnChange(fn: (_: number) => void): void {

modules/angular2/src/common/forms/directives/select_control_value_accessor.ts

@@ -51,7 +51,7 @@ export class SelectControlValueAccessor implements ControlValueAccessor {
 
   writeValue(value: any): void {
     this.value = value;
-    this._renderer.setElementProperty(this._elementRef, 'value', value);
+    this._renderer.setElementProperty(this._elementRef.nativeElement, 'value', value);
   }
 
   registerOnChange(fn: () => any): void { this.onChange = fn; }

modules/angular2/src/common/forms/directives/shared.ts

@@ -80,7 +80,6 @@ export function selectValueAccessor(dir: NgControl,
   var defaultAccessor;
   var builtinAccessor;
   var customAccessor;
-
   valueAccessors.forEach(v => {
     if (v instanceof DefaultValueAccessor) {
       defaultAccessor = v;