refactor: dart

modules/@angular/core/src/console.ts

@@ -9,14 +9,9 @@
 import {Injectable} from './di/decorators';
 import {print, warn} from './facade/lang';
 
-
-// Note: Need to rename warn as in Dart
-// class members and imports can't use the same name.
-let _warnImpl = warn;
-
 @Injectable()
 export class Console {
   log(message: string): void { print(message); }
   // Note: for reporting errors use `DOM.logError()` as it is platform specific
-  warn(message: string): void { _warnImpl(message); }
+  warn(message: string): void { warn(message); }
 }

modules/@angular/core/src/metadata/directives.ts

@@ -884,8 +884,6 @@ export class ComponentMetadata extends DirectiveMetadata implements ComponentMet
    * In CommonJS, this can always be set to `module.id`, similarly SystemJS exposes `__moduleName`
    * variable within each module.
    *
-   * In Dart, this can be determined automatically and does not need to be set.
-
    *
    * ## Simple Example
    *

modules/@angular/core/src/platform_core_providers.ts

@@ -19,8 +19,6 @@ function _reflector(): Reflector {
   return reflector;
 }
 
-var __unused: Type;  // prevent missing use Dart warning.
-
 const _CORE_PLATFORM_PROVIDERS: Array<any|Type|Provider|any[]> = [
   PlatformRef_, {provide: PlatformRef, useExisting: PlatformRef_},
   {provide: Reflector, useFactory: _reflector, deps: []},