message: save name and parameters of each function
diff: @@ -566,7 +566,7 @@ void ExpressionInfo::ExtractExpressionsRecursive(unique_ptr<ExpressionState> &st
  auto expr_info = make_unique<ExpressionInfo>();
  if (child->expr.expression_class == ExpressionClass::BOUND_FUNCTION) {
  expr_info->hasfunction = true;
  - expr_info->function_name = ((BoundFunctionExpression &)child->expr).function.name;
  + expr_info->function_name = ((BoundFunctionExpression &)child->expr).function.ToString();
  expr_info->function_time = child->profiler.time;
  expr_info->sample_tuples_count = child->profiler.sample_tuples_count;
  expr_info->tuples_count = child->profiler.tuples_count;
  