Suppressing unused warnings #204

Job	Run time
make (check, --zjit-call-threshold=1, -T --zjit-call-threshold=1, --enable-zjit=dev)	16m 38s
make (ruby, combo build test, --enable-yjit --enable-zjit)	2m 57s
make (check, --zjit-disable-hir-opt --zjit-call-threshold=1, -T --zjit-disable-hir-opt -T --zjit-...	14m 45s
make (zjit-check, --enable-yjit=dev --enable-zjit, 1.85.0)	4m 54s
ZJIT macOS result	4s
	39m 18s

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