JIT

GH-131498: Another refactoring of the code generator #3051

Job	Run time
Interpreter (Debug)	8m 57s
i686-pc-windows-msvc/msvc (Debug)	19m 49s
Free-Threaded (Debug) (19)	15m 25s
i686-pc-windows-msvc/msvc (Release)	11m 50s
x86_64-pc-windows-msvc/msvc (Debug)	18m 51s
x86_64-pc-windows-msvc/msvc (Release)	11m 25s
aarch64-pc-windows-msvc/msvc (Debug)	5m 17s
aarch64-pc-windows-msvc/msvc (Release)	6m 40s
x86_64-apple-darwin/clang (Debug)	14m 18s
x86_64-apple-darwin/clang (Release)	11m 40s
aarch64-apple-darwin/clang (Debug)	9m 35s
aarch64-apple-darwin/clang (Release)	8m 47s
x86_64-unknown-linux-gnu/gcc (Debug)	9m 55s
x86_64-unknown-linux-gnu/gcc (Release)	8m 1s
aarch64-unknown-linux-gnu/gcc (Debug)	10m 31s
aarch64-unknown-linux-gnu/gcc (Release)	7m 46s
	2h 58m 47s

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