title: Style error when using Material ExposedDropdownMenu
body: <p>When I try to use </p>
  
  <pre><code>@style/Widget.MaterialComponents.TextInputLayout.FilledBox.ExposedDropdownMenu 
  </code></pre>
  
  <p>Android Studio asks me to create a style</p>
  
  <pre><code>&lt;android.support.design.widget.TextInputLayout
          style="@style/Widget.MaterialComponents.TextInputLayout.FilledBox.ExposedDropdownMenu"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:hint="Type frais"
          app:layout_constraintTop_toTopOf="parent"
          app:layout_constraintStart_toStartOf="parent"
          app:layout_constraintEnd_toEndOf="parent"
          android:layout_marginLeft="8dp"
          android:layout_marginStart="8dp"
          android:layout_marginRight="8dp"
          android:layout_marginEnd="8dp"
          &gt;
  
      &lt;AutoCompleteTextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              /&gt;
  &lt;/android.support.design.widget.TextInputLayout&gt;
  </code></pre>
  
  <p>I expect to see a <code>ExposedDropdownMenu</code> style in the <code>TextInputLayout</code>, but actually Android Studio asks me to create this style</p>