Use raw FL macros over using RBASIC directly #644

Job	Run time
ruby-versions / Generate Ruby versions	5s
ubuntu-24.04 2.7	46s
ubuntu-24.04 3.4	25s
ubuntu-22.04 truffleruby-head	47s
ubuntu-24.04 3.3	18s
ubuntu-24.04 3.0	15s
ubuntu-24.04 debug	35s
ubuntu-24.04 head	21s
ubuntu-22.04 3.0	16s
ubuntu-22.04 3.1	13s
ubuntu-24.04 truffleruby-head	45s
ubuntu-22.04 3.2	18s
ubuntu-22.04 debug	36s
ubuntu-24.04 4.0	32s
ubuntu-24.04 3.2	17s
ubuntu-22.04 jruby-head	1m 14s
ubuntu-22.04 3.4	20s
ubuntu-22.04 4.0	27s
ubuntu-24.04 3.1	14s
ubuntu-22.04 head	26s
ubuntu-22.04 2.7	46s
ubuntu-22.04 3.3	21s
ubuntu-24.04 jruby-head	1m 16s
	11m 33s

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