title: Dart to JS: How to debug the generated Javascript errors
body: <p>Currently, the Javascript generated by dart2Js converter is very unintuitive to debug and doesn't produce intelligible error messages.</p>
  
  <p>Is there a specific way that people use to debug Javascript code generated by dart?</p>
  
  <p>I would like to get to the Dart line that is responsible for the error.</p>
  
  <p>Also it would be great to see core dump and stack frames in terms of Dart code.</p>