refactor: remove some facades (#12335)

modules/@angular/benchpress/src/metric/user_metric.ts

@@ -9,7 +9,6 @@
 import {Inject, Injectable} from '@angular/core';
 
 import {Options} from '../common_options';
-import {isNumber} from '../facade/lang';
 import {Metric} from '../metric';
 import {WebDriverAdapter} from '../web_driver_adapter';
 
@@ -44,7 +43,7 @@ export class UserMetric extends Metric {
     function getAndClearValues() {
       Promise.all(names.map(name => adapter.executeScript(`return window.${name}`)))
           .then((values: any[]) => {
-            if (values.every(isNumber)) {
+            if (values.every(v => typeof v === 'number')) {
               Promise.all(names.map(name => adapter.executeScript(`delete window.${name}`)))
                   .then((_: any[]) => {
                     let map: {[k: string]: any} = {};

modules/@angular/benchpress/src/reporter/json_file_reporter.ts

@@ -9,7 +9,6 @@
 import {Inject, Injectable, OpaqueToken} from '@angular/core';
 
 import {Options} from '../common_options';
-import {Json} from '../facade/lang';
 import {MeasureValues} from '../measure_values';
 import {Reporter} from '../reporter';
 import {SampleDescription} from '../sample_description';
@@ -39,12 +38,14 @@ export class JsonFileReporter extends Reporter {
     sortedProps(this._description.metrics).forEach((metricName) => {
       stats[metricName] = formatStats(validSample, metricName);
     });
-    var content = Json.stringify({
-      'description': this._description,
-      'stats': stats,
-      'completeSample': completeSample,
-      'validSample': validSample,
-    });
+    var content = JSON.stringify(
+        {
+          'description': this._description,
+          'stats': stats,
+          'completeSample': completeSample,
+          'validSample': validSample,
+        },
+        null, 2);
     var filePath = `${this._path}/${this._description.id}_${this._now().getTime()}.json`;
     return this._writeFile(filePath, content);
   }

modules/@angular/benchpress/src/reporter/util.ts

@@ -6,20 +6,15 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-
-import {NumberWrapper} from '../facade/lang';
 import {MeasureValues} from '../measure_values';
 import {Statistic} from '../statistic';
 
 export function formatNum(n: number) {
-  return NumberWrapper.toFixed(n, 2);
+  return n.toFixed(2);
 }
 
 export function sortedProps(obj: {[key: string]: any}) {
-  var props: string[] = [];
-  props.push(...Object.keys(obj));
-  props.sort();
-  return props;
+  return Object.keys(obj).sort();
 }
 
 export function formatStats(validSamples: MeasureValues[], metricName: string): string {
@@ -29,5 +24,5 @@ export function formatStats(validSamples: MeasureValues[], metricName: string):
   var formattedMean = formatNum(mean);
   // Note: Don't use the unicode character for +- as it might cause
   // hickups for consoles...
-  return NumberWrapper.isNaN(cv) ? formattedMean : `${formattedMean}+-${Math.floor(cv)}%`;
+  return isNaN(cv) ? formattedMean : `${formattedMean}+-${Math.floor(cv)}%`;
 }

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

@@ -6,8 +6,6 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Math} from './facade/math';
-
 export class Statistic {
   static calculateCoefficientOfVariation(sample: number[], mean: number) {
     return Statistic.calculateStandardDeviation(sample, mean) / mean * 100;