{
{   This request changes constraint information within a
{ clt$type_specification.
{
{       CLP$CHANGE_TYPE_SPECIFICATION (TYPE_SPECIFICATION, CHANGES, STATUS)
{
{ TYPE_SPECIFICATION: (input)  This parameter specifies the type specification
{       to be changed.
{
{ CHANGES: (input)  This parameter specifies the changes to be made.  The KIND
{       field of each change element determines what aspect of the type is to
{       be changed as foillows.
{
{       CLC$TC_INTEGER_SUBRANGE:  specifies a new MIN_INTEGER_VALUE and
{             MAX_INTEGER_VALUE for an integer type.
{
{       CLC$TC_KEYWORD_AVAILABILITY:  specifies a new AVAILABILITY level for
{             the specified KEYWORD.
{
{       CLC$TC_LIST_SIZE:  specifies a new MIN_LIST_SIZE and MAX_LIST_SIZE for
{             a list type.
{
{       CLC$TC_REAL_SUBRANGE:  specifies a new MIN_REAL_VALUE and
{             MAX_REAL_VALUE for a real type.
{
{       CLC$TC_STRING_SIZE:  specifies a new MIN_STRING_SIZE and
{             MAX_STRING_SIZE for a string type.
{
{       CLC$TC_NULL:  can be used as a place holder in the changes array.
{
{ STATUS: (output)  This parameter specifies the request status.
{
