title: Eclipse text highlights
body: <p>In eclipse when I'm pressing 'ctrl' (no matter what next) part of my code turns red with a yellow background.
  What is this and how to disable it?</p>
  
  <p>Also when this happens 'ctrl' + 'space' stop working until I restart eclipse.</p>
  
  <p>here what it looks like this:</p>
  
  <p><img src="https://i.stack.imgur.com/3IobZ.jpg" alt="enter image description here"></p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>How to reproduce: start the auto completion (ctrl + space) on something you already wrote:</p>
  
  <p>class.fun</p>
  
  <p>step after the <code>.</code> and  start the auto complition</p>
  
  <p>now each time I hold ctrl, <code>fun</code> glows yellow:</p>
  
  <p>class.<strong>fun</strong></p>