title: Mozart/Oz Gives Error : expression at statement position
body: <p>Consider the following code:</p>
  
  <pre><code>declare
  class Test
     attr L
     meth init L:=nil end
     meth put(X) {Browse @L} end
     meth get {Browse @L} end
     meth isEmpty @L==nil end
     meth getList @L end
     meth setNil L:=nil end
     meth union(C) {Browse @L} end
  end
  </code></pre>
  
  <p>When I compile this class it <strong>gives error : expression at statement position</strong>. I'm checking my little code for about an hour to fix this error but got no luck. Please help me find the problem.
  Thank you.</p>