title: Property 'Y' does not exist on type "'Component name'" in AOT build
body: <p>I got  <code>Property 'Y' does not exist on type 'Component name'</code> exception when trying to build in AOT.</p>
  
  <p>ExampleComponent.html</p>
  
  <pre><code>&lt;header [EXAMPLE1]="Y" [EXAMPLE2]="Y"&gt;&lt;/header&gt;
  </code></pre>
  
  <p>Header.ts</p>
  
  <pre><code>@Input() public EXAMPLE1: string = "N";
  @Input() public EXAMPLE2: string = "N";
  </code></pre>
  
  <p>When trying to serve or build JIT it working fine.but when trying to AOT build i got this exception.</p>