ZJIT: Fn stub: Move args to create appropriate unfilled optional para… #12795

Job	Run time
ruby-bench (--warmup=1 --bench=1 --excludes=shipit)	14m 35s
make (check, --enable-shared --enable-load-relative)	8m 15s
make (check, --disable-yjit)	7m 22s
make (check, ubuntu-24.04, capi)	11m 0s
make (check, cppflags=-DVM_CHECK_MODE)	9m 28s
make (test-bundler-parallel, 50)	22m 47s
make (check, i686)	52m 33s
make (test-bundled-gems)	21m 11s
make-ibm	-1s
Ubuntu result	3s
	2h 27m 13s

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