code: public void translateInnerClasses ()
      {
          ImportSet inner = new ImportSet();
          Iterator<String> i = _imports.iterator();
          while (i.hasNext()) {
              String name = i.next();
              int dollar = name.indexOf('$');
              if (dollar >= 0) {
                  i.remove();
                  inner.add(name.replace('$', '_'));
              }
          }
  
          addAll(inner);
      }
docs: Replace all inner classes' separator characters ('$') with an underscore ('_') for use
  when generating ActionScript.