title: Angular material autocomplete not working, no errors shown
body: <p>I've implemented my autocomplete, no errors, everything seems ok however absolutely nothing happens. I enter something in the input field and no action seems to happen, nothing is shown in the console.</p>
  
  <p>HTML</p>
  
  <pre><code>  &lt;form&gt;
      &lt;mat-form-field&gt;
        &lt;input type="text" matInput [formControl]="myControl" [matAutocomplete]="auto"&gt;
      &lt;/mat-form-field&gt;
  
      &lt;mat-autocomplete #auto="matAutocomplete"&gt;
        &lt;mat-option *ngFor="let n of testValues" [value]="n"&gt;
          {{n}}
        &lt;/mat-option&gt;
      &lt;/mat-autocomplete&gt;
    &lt;/form&gt;
  </code></pre>
  
  <p>TS</p>
  
  <pre><code>import { MatAutocomplete } from '@angular/material/autocomplete';
  import { FormControl } from '@angular/forms';
  ...
  public testValues = ['one', 'two', 'three', 'four'];
  public myControl: FormControl;
  ...
  constructor() {
      this.myControl = new FormControl();
  }
  </code></pre>
  
  <p>EDIT: I have imported </p>
  
  <pre><code>import {MatAutocompleteModule} from '@angular/material/autocomplete';
  </code></pre>
  
  <p>in my app module.</p>
  
  <p>Version of material - </p>
  
  <pre><code>"@angular/material": "^5.0.0-rc.2",
  </code></pre>