JIT

GH-145668: Add FOR_ITER specialization for virtual iterators. Specialize GET_ITER. #5780

Job	Run time
aarch64-apple-darwin/clang (Release)	14m 16s
JIT with tail calling interpreter	4m 23s
x86_64-pc-windows-msvc/msvc (Release)	14m 55s
Free-Threaded (Debug)	3m 51s
aarch64-unknown-linux-gnu/gcc (Release)	6m 57s
aarch64-apple-darwin/clang (Debug)	12m 58s
i686-pc-windows-msvc/msvc (Debug)	28m 53s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 12s
x86_64-apple-darwin/clang (Release)	31m 46s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 13s
i686-pc-windows-msvc/msvc (Release)	13m 9s
x86_64-pc-windows-msvc/msvc (Debug)	29m 57s
x86_64-unknown-linux-gnu/gcc (Release)	8m 19s
aarch64-pc-windows-msvc/msvc (Release)	19m 56s
Interpreter (Debug)	12m 5s
x86_64-apple-darwin/clang (Debug)	27m 30s
aarch64-pc-windows-msvc/msvc (Debug)	27m 6s
JIT without optimizations (Debug)	3m 55s
	4h 43m 21s

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