Previously, any time we used FL_TEST or variations we would need to add an additional test that it wasn't a T_NODE. I think that was only needed historically and we can avoid generating that extra code.
ivptr
fields
next_iv_index
next_field_index
blocking_operation_wait
RBIMPL_ASSERT_TYPE
Object#object_id
main
ruby_thread_has_gvl_p
clock_gettime
clock_getres