title: Scan for unused resources in Android Studio 3.0
body: <p>Lint - Scan for Unused Resources - does not work on Android Studio 3.0.  This is CMD-Alt-Shift I (Unused Resources).  It works fine on Android 2.3.3.</p>
  
  <p>In Android Studio 3.0, it just shows "No suspicious code found." message while I know for a fact that there are unused resources on my project. </p>
  
  <p>Does anyone have the same issue?  </p>