[jextract] Rework translation #482

Job	Run time
Swift tests (swift:6.0.2 jdk:Corretto os:jammy)	4m 37s
Java tests (swift:6.0.2 jdk:Corretto os:jammy)	4m 49s
Verify Samples (swift:6.0.2 jdk:Corretto os:jammy)	14m 9s
soundness / License headers check	6s
soundness / Documentation check	34s
soundness / Unacceptable language check	2s
soundness / API breakage check	0s
soundness / Broken symlinks check	2s
soundness / Format check	0s
soundness / Python lint check	4s
soundness / Shell check	36s
soundness / YAML lint check	5s
	25m 4s

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