title: Classes in Worksheet in Scala-IDE cause error
body: <p>Just instantiating a class by typing the following into a Worksheet (note, Worksheet, created with File > New > Scala Worksheet, a <code>.sc</code> file, not a normal <code>.scala</code> file) and clicking Save causes a spurious error:</p>
  
  <p><img src="https://i.stack.imgur.com/2uIKN.png" alt="enter image description here"></p>
  
  <p>Mouseover:</p>
  
  <p><img src="https://i.stack.imgur.com/frJEP.png" alt="enter image description here"></p>
  
  <p>"Multiple markers at this line
  - illegal start of simple expression
  - ';' expected but identifier found."</p>
  
  <p>I doubt something as simple as this could have slipped through testing so maybe it's a configuration issue. I've tried it on 2 machines and get the same behaviour:</p>
  
  <p>1) Windows 7 with Eclipse Helios</p>
  
  <p>2) Windows XP with Eclipse Indigo - clean download from Typesafe website</p>
  
  <p>Any ideas? Do other people get this on their setup?</p>