[jextract] Rework translation #504

Job	Run time
Swift tests (swift:6.0.2 jdk:Corretto os:jammy)	4m 43s
Java tests (swift:6.0.2 jdk:Corretto os:jammy)	7m 36s
Verify Samples (swift:6.0.2 jdk:Corretto os:jammy)	16m 54s
soundness / Unacceptable language check	4s
soundness / Broken symlinks check	5s
soundness / Documentation check	36s
soundness / License headers check	5s
soundness / API breakage check	0s
soundness / Shell check	44s
soundness / Format check	0s
soundness / Python lint check	6s
soundness / YAML lint check	3s
	30m 56s

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