toDebugString method
A multiline string showing the node and its children.
Implementation
String toDebugString() {
  var to = TreeOutput();
  var tp = _TreePrinter(to, true);
  visit(tp);
  return to.buf.toString();
}A multiline string showing the node and its children.
String toDebugString() {
  var to = TreeOutput();
  var tp = _TreePrinter(to, true);
  visit(tp);
  return to.buf.toString();
}