{Define KEYPOINT CLASS Codes.

  CONST
    osk$data = osk$system_class + 0, { OS - DATA keypoint}
    osk$unusual = osk$system_class + 1, {U OS - Unusual keypoint class.}
    osk$entry = osk$system_class + 2, {E OS - Standard keypoint (gated or major internal)}
    osk$exit = osk$system_class + 3, {X OS - Exit keypoint}
    osk$debug = osk$system_class + 4, {D OS - Debug keypoint.}
    osk$mtr = osk$system_class + 5, {R OS - monitor mode entry/exit}
    osk$performance = osk$system_class + 11; {R OS -performance keypoints}

*copyc OSK$COMMON_KEYPOINT_DEFINITIONS
