symtab: Function ties don't need VAL_IS_READONLY.
symtab: Function ties don't need VAL_IS_READONLY.

This is ignored, because o_get_readonly loads values directly instead
of using lily_assign_value (literals are always really simple).

FascinatedBox/lily,FascinatedBox/lily,jesserayadkins/lily,FascinatedBox/lily,jesserayadkins/lily,jesserayadkins/lily,FascinatedBox/lily