JIT

gh-131798: Split `FOR_ITER_GEN` into smaller uops #6041

Job	Run time
Interpreter (Debug)	11m 34s
JIT without optimizations (Debug)	3m 38s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 9s
JIT with tail calling interpreter	4m 51s
x86_64-apple-darwin/clang (Debug)	41m 44s
aarch64-apple-darwin/clang (Release)	13m 59s
aarch64-apple-darwin/clang (Debug)	14m 46s
x86_64-unknown-linux-gnu/gcc (Release)	9m 15s
aarch64-unknown-linux-gnu/gcc (Release)	7m 22s
x86_64-apple-darwin/clang (Release)	25m 59s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 37s
Free-Threaded (Debug)	3m 13s
aarch64-pc-windows-msvc/msvc (Debug)	1h 0m 15s
x86_64-pc-windows-msvc/msvc (Debug)	1h 0m 13s
i686-pc-windows-msvc/msvc (Release)	14m 30s
i686-pc-windows-msvc/msvc (Debug)	1h 0m 12s
aarch64-pc-windows-msvc/msvc (Release)	19m 54s
x86_64-pc-windows-msvc/msvc (Release)	15m 47s
	6h 30m 58s

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