…sort of…
It looks like swap_loc_default is deprecated and has been replaced by swap_room and it took some massaging but this does compile and seems to play correctly (in the SK built-in interpreter, and nothing looked wrong in scottfree either)
action monologue when flag 6 and counter_gt 25 and counter_le 30
print "*Am I then reveng'd when he is FIT\nand SEASONED for his passage? No!"
# print "UP, sword! Prolong thy sickly days*\n\nClaudius mumbles amen and SKULKS off"
put claudius tourney
swap_room
swap_room
clear_flag 6
set_counter 0
put ophelia hallway
So, a workable solution in lieu of compiler repair that will confuse scholars. 