title: Drop into interpreter during arbitrary scala code location
body: <p>I come from a Python background, where at any point in my code I can add</p>
  
  <pre><code>import pdb; pdb.set_trace()
  </code></pre>
  
  <p>and at runtime I'll be dropped into an interactive interpreter at that spot. Is there an equivalent for scala, or is this not possible at runtime?</p>