converts a pointer to the name-field (NFA) to point
then to the corresponding link-field (LFA) - this operation
is quicker than the inverse >L>NAME. This word is a specific
implementation detail and should not be used by normal users - instead
use always >NAME> which is much more portable. Many systems may
possibly not even have a >>LINK-field in the sense that a @ on
this adress will lead to another >>NAME. Any operation on the
resulting >>LINK-adress is even dependent on the current configuration
of PFE - only in fig-mode you are asserted to have the classic detail.
(and fig-mode did not know about >SYNONYMs - see note at >LINK>).