ecma_prop_name_is_symbol (ecma_string_t *string_p) /**< ecma-string */
{
  JERRY_ASSERT (string_p != NULL);

  return (!ECMA_IS_DIRECT_STRING (string_p)
          && ECMA_STRING_GET_CONTAINER (string_p) == ECMA_STRING_CONTAINER_SYMBOL);
} /* ecma_prop_name_is_symbol */
ecma_prop_name_is_symbol (ecma_string_t *string_p)  
{
  JERRY_ASSERT (string_p != NULL);

  return (!ECMA_IS_DIRECT_STRING (string_p)
          && ECMA_STRING_GET_CONTAINER (string_p) == ECMA_STRING_CONTAINER_SYMBOL);
}  