JIT

gh-143732: add specialization for `FOR_ITER` #6259

Job	Run time
Interpreter (Debug)	12m 48s
JIT without optimizations (Debug)	3m 33s
JIT with tail calling interpreter	4m 53s
Free-Threaded (Debug)	4m 3s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 48s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 25s
x86_64-unknown-linux-gnu/gcc (Release)	9m 25s
aarch64-apple-darwin/clang (Debug)	14m 11s
x86_64-apple-darwin/clang (Release)	29m 4s
aarch64-unknown-linux-gnu/gcc (Release)	7m 5s
aarch64-apple-darwin/clang (Release)	11m 52s
x86_64-apple-darwin/clang (Debug)	31m 17s
x86_64-pc-windows-msvc/msvc (Debug)	29m 36s
i686-pc-windows-msvc/msvc (Release)	16m 1s
x86_64-pc-windows-msvc/msvc (Release)	15m 38s
aarch64-pc-windows-msvc/msvc (Release)	20m 44s
i686-pc-windows-msvc/msvc (Debug)	21m 58s
aarch64-pc-windows-msvc/msvc (Debug)	25m 23s
	4h 41m 44s

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