[jextract] Rework translation #488

Job	Run time
Java tests (swift:6.0.2 jdk:Corretto os:jammy)	7m 5s
Swift tests (swift:6.0.2 jdk:Corretto os:jammy)	4m 37s
Verify Samples (swift:6.0.2 jdk:Corretto os:jammy)	17m 2s
soundness / License headers check	4s
soundness / Unacceptable language check	3s
soundness / Documentation check	32s
soundness / API breakage check	0s
soundness / Broken symlinks check	3s
soundness / Format check	0s
soundness / Shell check	30s
soundness / YAML lint check	3s
soundness / Python lint check	7s
	30m 6s

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