JIT

gh-127936: convert marshal module to use import/export API for ints (… #241

Job	Run time
Interpreter (Debug)	7m 40s
Free-Threaded (Debug) (19)	12m 28s
i686-pc-windows-msvc/msvc (Debug)	17m 33s
i686-pc-windows-msvc/msvc (Release)	11m 49s
x86_64-pc-windows-msvc/msvc (Debug)	18m 3s
x86_64-pc-windows-msvc/msvc (Release)	10m 18s
aarch64-pc-windows-msvc/msvc (Debug)	5m 30s
aarch64-pc-windows-msvc/msvc (Release)	5m 50s
x86_64-apple-darwin/clang (Debug)	11m 59s
x86_64-apple-darwin/clang (Release)	13m 21s
aarch64-apple-darwin/clang (Debug)	8m 45s
aarch64-apple-darwin/clang (Release)	8m 57s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 34s
x86_64-unknown-linux-gnu/gcc (Release)	5m 44s
aarch64-unknown-linux-gnu/gcc (Debug)	7s
aarch64-unknown-linux-gnu/gcc (Release)	10s
	2h 26m 48s

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