title: Angular2 testcase shows No provider for NgControl
body: <p><code>ng test</code> shows the below error but it works as expected in reality.</p>
  
  <pre><code>Error: Template parse errors:
      No provider for NgControl ("
        &lt;div class="form-group"&gt;
          &lt;label class="control-label"&gt;Location&lt;/label&gt;
          [ERROR -&gt;]&lt;select class="selectpicker" *ngIf="locations" data-style="btn btn-primary btn-round" title="Select A"): VehicleFormComponent@27:4
      No provider for NgControl ("  &lt;div class="form-group label-floating"&gt;
          &lt;label class="control-label"&gt;Is Available&lt;/label&gt;
          [ERROR -&gt;]&lt;md-slide-toggle [(ngModel)]="isAvailable" color="primary" [ngModelOptions]="{standalone: true}"&gt;
         "): VehicleFormComponent@41:4 in src/test.ts (line 25739)
      Expected undefined to be truthy.
  </code></pre>
  
  <p>I think it's mainly because of adding <code>[ngModelOptions]="{standalone: true}"</code> in a custom tag. </p>