fix benchmarks

modules/angular2/src/core/di/binding.ts

@@ -255,30 +255,26 @@ export class Binding {
  * expect(injector.get('message')).toEqual('Hello');
  * ```
  */
-export abstract class ResolvedBinding {
+export interface ResolvedBinding {
   /**
    * A key, usually a `Type`.
    */
-  public key: Key;
+  key: Key;
 
   /**
    * Factory function which can return an instance of an object represented by a key.
    */
-  public resolvedFactories: ResolvedFactory[];
+  resolvedFactories: ResolvedFactory[];
 
   /**
    * Indicates if the binding is a multi-binding or a regular binding.
    */
-  public multiBinding: boolean;
+  multiBinding: boolean;
 }
 
-export class ResolvedBinding_ extends ResolvedBinding {
-  constructor(key: Key, resolvedFactories: ResolvedFactory[], multiBinding: boolean) {
-    super();
-    this.key = key;
-    this.resolvedFactories = resolvedFactories;
-    this.multiBinding = multiBinding;
-  }
+export class ResolvedBinding_ implements ResolvedBinding {
+  constructor(public key: Key, public resolvedFactories: ResolvedFactory[],
+              public multiBinding: boolean) {}
 
   get resolvedFactory(): ResolvedFactory { return this.resolvedFactories[0]; }
 }

modules/angular2/src/core/di/exceptions.ts

@@ -134,17 +134,7 @@ export class CyclicDependencyError extends AbstractBindingError {
  * }
  * ```
  */
-export abstract class InstantiationError extends WrappedException {
-  constructor(message, originalException, originalStack, context) {
-    super(message, originalException, originalStack, context);
-  }
-  abstract addKey(injector: Injector, key: Key): void;
-  get wrapperMessage(): string { return unimplemented(); };
-  get causeKey(): Key { return unimplemented(); };
-  get context() { return unimplemented(); };
-}
-
-export class InstantiationError_ extends InstantiationError {
+export class InstantiationError extends WrappedException {
   /** @internal */
   keys: Key[];
 

modules/angular2/src/core/di/injector.ts

@@ -13,7 +13,6 @@ import {
   NoBindingError,
   CyclicDependencyError,
   InstantiationError,
-  InstantiationError_,
   InvalidBindingError,
   OutOfBoundsError,
   MixingMultiBindingsWithRegularBindings
@@ -866,7 +865,7 @@ export class Injector {
           break;
       }
     } catch (e) {
-      throw new InstantiationError_(this, e, e.stack, binding.key);
+      throw new InstantiationError(this, e, e.stack, binding.key);
     }
     return obj;
   }

modules/angular2/src/core/directives/ng_class.ts

@@ -2,7 +2,6 @@ import {isPresent, isString, StringWrapper, isBlank} from 'angular2/src/core/fac
 import {DoCheck, OnDestroy} from 'angular2/lifecycle_hooks';
 import {Directive} from 'angular2/src/core/metadata';
 import {ElementRef} from 'angular2/src/core/linker';
-import {ElementRef_} from '../linker/element_ref';
 import {
   IterableDiffer,
   IterableDiffers,

modules/angular2/src/core/directives/ng_style.ts

@@ -7,7 +7,6 @@ import {ElementRef} from 'angular2/src/core/linker';
 import {Directive} from 'angular2/src/core/metadata';
 import {Renderer} from 'angular2/src/core/render';
 import {isPresent, isBlank, print} from 'angular2/src/core/facade/lang';
-import {ElementRef_} from "../linker/element_ref";
 
 /**
  * The `NgStyle` directive changes styles based on a result of expression evaluation.

modules/angular2/src/core/linker/dynamic_component_loader.ts

@@ -14,6 +14,14 @@ import {ViewRef, HostViewRef} from './view_ref';
  * method.
  */
 export abstract class ComponentRef {
+  /**
+   * The injector provided {@link DynamicComponentLoader#loadAsRoot}.
+   *
+   * TODO(i): this api is useless and should be replaced by an injector retrieved from
+   *     the HostElementRef, which is currently not possible.
+   */
+  injector: Injector;
+
   /**
    * Location of the Host Element of this Component Instance.
    */
@@ -54,14 +62,6 @@ export abstract class ComponentRef {
 }
 
 export class ComponentRef_ extends ComponentRef {
-  /**
-   * The injector provided {@link DynamicComponentLoader#loadAsRoot}.
-   *
-   * TODO(i): this api is useless and should be replaced by an injector retrieved from
-   *     the HostElementRef, which is currently not possible.
-   */
-  injector: Injector;
-
   /**
    * TODO(i): refactor into public/private fields
    */

modules/angular2/src/core/metadata/view.ts

@@ -115,7 +115,7 @@ export class ViewMetadata {
    * }
    * ```
    */
-  directives: Array<Type | Function | any[]>;
+  directives: Array<Type | any[]>;
 
   pipes: Array<Type | any[]>;
 

modules/angular2/src/core/render/api.ts

@@ -13,12 +13,7 @@ import {Map} from 'angular2/src/core/facade/collection';
  *
  * <!-- TODO: this is created by Renderer#createProtoView in the new compiler -->
  */
-export abstract class RenderProtoViewRef {}
-
-export class RenderProtoViewRef_ extends RenderProtoViewRef {
-  constructor() { super(); }
-}
-
+export class RenderProtoViewRef {}
 
 /**
  * Represents a list of sibling Nodes that can be moved by the {@link Renderer} independently of