JIT

gh-143732: add specialization for `FOR_ITER` #6459

Job	Run time
aarch64-unknown-linux-gnu/gcc (Debug)	9m 5s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 41s
aarch64-apple-darwin/clang (Release)	15m 5s
x86_64-pc-windows-msvc/msvc (Release)	15m 32s
x86_64-unknown-linux-gnu/gcc (Release)	8m 51s
i686-pc-windows-msvc/msvc (Debug)	21m 52s
x86_64-apple-darwin/clang (Debug)	29m 27s
Free-Threaded (Debug)	3m 51s
JIT with tail calling interpreter	4m 12s
aarch64-pc-windows-msvc/msvc (Debug)	24m 53s
x86_64-apple-darwin/clang (Release)	43m 7s
aarch64-apple-darwin/clang (Debug)	17m 25s
aarch64-pc-windows-msvc/msvc (Release)	18m 23s
i686-pc-windows-msvc/msvc (Release)	14m 48s
x86_64-pc-windows-msvc/msvc (Debug)	29m 54s
aarch64-unknown-linux-gnu/gcc (Release)	6m 32s
JIT without optimizations (Debug)	3m 48s
Interpreter (Debug)	12m 6s
	4h 53m 32s

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