@NotNull
  public Promise<XExpression> calculateEvaluationExpression() {
    String expression = getEvaluationExpression();
    XExpression res =
      expression != null ? XDebuggerUtil.getInstance().createExpression(expression, null, null, EvaluationMode.EXPRESSION) : null;
    return Promises.resolvedPromise(res);
  }
@NotNull
  public Promise<XExpression> calculateEvaluationExpression()