allocate_line_number_cache (b);
/* If we don't know the line number of BUF_BEGV, calculate it now. */
if (XINT (LINE_NUMBER_BEGV (b)) == -1)
allocate_line_number_cache (b);
/* If we don't know the line number of BUF_BEGV, calculate it now. */
if (XINT (LINE_NUMBER_BEGV (b)) == -1)