title: Autosuggestion of attributes in XML not working in android studio 3.3.2
body: <p>In layout XML files of Android Studio it usually shows suggestion of attributes for any component line 'layout_marginTop','layout_marginBottom' etc,</p>
  
  <p>Now in my case it is not showing proper suggestions even though they are valid attributes.... it is happening in android studio 3.3.2</p>
  
  <p><a href="https://i.stack.imgur.com/ElC1L.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ElC1L.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/wm9TF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wm9TF.png" alt="enter image description here"></a></p>