chore: upgrade to new Zone.js API v0.6.2

BREAKING CHANGE

Removed deprecated API from NgZone
- `NgZone.overrideOnTurnStart`
- `NgZone.overrideOnTurnDone`
- `NgZone.overrideOnEventDone`
- `NgZone.overrideOnErrorHandler`

Rename NgZone API
- `NgZone.onTurnStart` => `NgZone.onUnstable`
- `NgZone.onTurnDone` => `NgZone.onMicrotaskEmpty`
- `NgZone.onEventDone` => `NgZone.onStable`

Closes #7345

tools/broccoli/html-replace/SCRIPTS_benchmarks.html

@@ -28,7 +28,7 @@
     loadRuntimePackages.push('angular2');
     scriptUrls = [
       'Reflect.js',
-      'zone-microtask.js',
+      'zone.js',
       'long-stack-trace-zone.js'
     ];
   }
@@ -46,5 +46,5 @@
 </script>
 <script>
   var filename = '@@PATH/@@FILENAME';
-  System.import(filename).then(function(m) { m.main(); }, console.error.bind(console));
+  System.import(filename).then(function(m) { m.main && m.main(); }, console.error.bind(console));
 </script>