{
{   The purpose of this request is to get the number of occurrences for
{ a variable.
{
{       FDP$GET_NUMBER_OCCURRENCES (FORM_IDENTIFIER, VARIABLE_NAME,
{            TABLE_MEMBER, OCCURRENCES, STATUS)
{
{ FORM_IDENTIFIER: (input)  This parameter specifies the form to add to the
{       list of forms scheduled for display.
{
{ VARIABLE_NAME: (input)  This parameter specifies the variable name.
{
{ TABLE_MEMBER: (output)  This parameter is TRUE if the variable is a member of
{       a table.  Otherwise, this parameter is FALSE.
{
{ OCCURRENCES: (output) This parameters specifies the number of occurrences
{       for the variable.
{
{ STATUS: (output)  This parameter specifies the name of the variable to set
{       to indicate the status of request.
{
{       condition identifiers:  fde$bad_data_value
{                               fde$invalid_form_identifier
{                               fde$system_error
{                               fde$unknown_variable_name
{
