{
{   The purpose of this request is to determine whether a stack frame
{ has been previously established as a debug critical stack frame.
{
{       PMP$DEBUG_CRITICAL_FRAME (STACK_FRAME, CRITICAL_STACK_FRAME)
{
{ STACK_FRAME: (input) This parameter specifies the stack frame which
{       is in question.
{
{ CRITICAL_STACK_FRAME: (output) This parameter returns TRUE if the stack
{       frame in question has been previously established has a debug critical
{       stack frame.
{
