JIT

GH-145668: Add FOR_ITER specialization for virtual iterators. Specialize GET_ITER. #5779

Job	Run time
Free-Threaded (Debug)	1m 2s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 3s
x86_64-apple-darwin/clang (Debug)	25m 10s
i686-pc-windows-msvc/msvc (Release)	14m 41s
x86_64-apple-darwin/clang (Release)	25m 7s
x86_64-unknown-linux-gnu/gcc (Release)	8m 59s
aarch64-unknown-linux-gnu/gcc (Release)	6m 59s
JIT without optimizations (Debug)	3m 40s
aarch64-apple-darwin/clang (Debug)	16m 37s
aarch64-pc-windows-msvc/msvc (Release)	17m 24s
x86_64-pc-windows-msvc/msvc (Debug)	24m 57s
aarch64-pc-windows-msvc/msvc (Debug)	24m 56s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 7s
JIT with tail calling interpreter	4m 46s
aarch64-apple-darwin/clang (Release)	14m 42s
x86_64-pc-windows-msvc/msvc (Release)	17m 26s
i686-pc-windows-msvc/msvc (Debug)	24m 56s
Interpreter (Debug)	12m 25s
	4h 26m 57s

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