title: Accessibility Check fail when using TextInputLayout
body: <p>I'm using the new TextInputLayout provided by Android.support to do floating label. But it will fail Espresso Accessibility Check because "View is missing speakable text needed for a screen reader". </p>
  
  <p>Looked into it and find out the TextInputLayout will nullify hint when parent does addView(). This is basically how it can float the label up(set the label, nullify the hint). And any EditText with null hint will fail the accessibility check.</p>
  
  <p>Anyone knows how to resolve this issue? It's really driving me crazy..</p>
  
  <p>Thanks a lot!!!!</p>