fix(benchpress): make code compile and unit tests green again

modules/@angular/benchpress/src/sample_description.ts

@@ -6,9 +6,10 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {StringMapWrapper} from '@angular/facade/src/collection';
+import {OpaqueToken} from '@angular/core';
 
 import {Options} from './common_options';
+import {StringMapWrapper} from './facade/collection';
 import {Metric} from './metric';
 import {Validator} from './validator';
 
@@ -17,8 +18,23 @@ import {Validator} from './validator';
  * SampleDescription merges all available descriptions about a sample
  */
 export class SampleDescription {
-  // TODO(tbosch): use static values when our transpiler supports them
-  static get PROVIDERS(): any[] { return _PROVIDERS; }
+  static PROVIDERS = [{
+    provide: SampleDescription,
+    useFactory:
+        (metric: Metric, id: string, forceGc: boolean, userAgent: string, validator: Validator,
+         defaultDesc: {[key: string]: string}, userDesc: {[key: string]: string}) =>
+            new SampleDescription(
+                id,
+                [
+                  {'forceGc': forceGc, 'userAgent': userAgent}, validator.describe(), defaultDesc,
+                  userDesc
+                ],
+                metric.describe()),
+    deps: [
+      Metric, Options.SAMPLE_ID, Options.FORCE_GC, Options.USER_AGENT, Validator,
+      Options.DEFAULT_DESCRIPTION, Options.SAMPLE_DESCRIPTION
+    ]
+  }];
   description: {[key: string]: any};
 
   constructor(
@@ -32,19 +48,3 @@ export class SampleDescription {
 
   toJson() { return {'id': this.id, 'description': this.description, 'metrics': this.metrics}; }
 }
-
-var _PROVIDERS = [{
-  provide: SampleDescription,
-  useFactory: (metric, id, forceGc, userAgent, validator, defaultDesc, userDesc) =>
-                  new SampleDescription(
-                      id,
-                      [
-                        {'forceGc': forceGc, 'userAgent': userAgent}, validator.describe(),
-                        defaultDesc, userDesc
-                      ],
-                      metric.describe()),
-  deps: [
-    Metric, Options.SAMPLE_ID, Options.FORCE_GC, Options.USER_AGENT, Validator,
-    Options.DEFAULT_DESCRIPTION, Options.SAMPLE_DESCRIPTION
-  ]
-}];