title: IntelliJ: evaluate lambda expression raises an compile error in debugging
body: <p>I'd like to evaluate code including lambda expression with Intellij 'Evaluate Code Fragment' feature. But then, Intellij raises an error <code>Unable to compile for target level 1.8. Need to run IDEA on java version at least 1.8, currently running on 1.6.0_65-b14-462-11M4609</code></p>
  
  <p>The evaluating code is very simple as below.</p>
  
  <pre><code>Set&lt;Integer&gt; set = new HashSet&lt;&gt;();
  set.add(1);
  set.stream().map(v-&gt;v).collect(Collectors.toSet());
  </code></pre>
  
  <p>My Intellij version is 14.0.3 and according to <a href="https://www.jetbrains.com/idea/whatsnew/" rel="noreferrer">official document</a>, version 14 supports lambda expression evaluation.</p>
  
  <p>How can the feature be available?</p>
  
  <p><img src="https://i.stack.imgur.com/sw08R.png" alt="enter image description here"></p>