ZJIT: Eliminate GuardType on frozen objects #215

Job	Run time
make (zjit-check, --enable-yjit=dev --enable-zjit, 1.85.0)	3m 55s
ruby-bench (--zjit-call-threshold=2, --warmup=1 --bench=1, --enable-zjit=dev_nodebug)	15m 27s
make (check, --zjit-call-threshold=1, -T --zjit-call-threshold=1, --enable-zjit=dev)	17m 55s
make (check, --zjit-disable-hir-opt --zjit-call-threshold=1, -T --zjit-disable-hir-opt -T --zjit-...	13m 20s
make (ruby, combo build test, --enable-yjit --enable-zjit)	3m 27s
ZJIT macOS result	4s
	54m 8s

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