swap - swap out a file explicitly


void swap( object );


This  efun  should be reserved for debugging only.  It allows an object
to be explicitly swapped out.  If enabled, it is  strongly  recommended
that a simul_efun override (for this efun) be used to prevent abuse.

Note:  objects which have been destructed, already swapped out, contain
a heart beat, cloned, inherited, or interactive, cannot be swapped out.