macOS

Move the declaration of `rb_path_check` #600

Job	Run time
make (check, macos-14)	6m 49s
make (check, macos-14, --with-gcc=gcc-14)	8m 43s
make (check, macos-14, --with-jemalloc --with-opt-dir=$(brew --prefix jemalloc))	6m 27s
make (check, macos-14, --with-gmp)	6m 58s
make (test-all, --repeat-count=2, macos-14)	9m 17s
make (test-bundler-parallel, macos-14)	19m 54s
make (test-bundled-gems, macos-14)	10m 9s
make (check, macos-15)	5m 10s
make (check, macos-13)	12m 38s
macOS result	1s
	1h 26m 6s

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