JIT

gh-129231: group executable JIT code in memory #2615

Job	Run time
Interpreter (Debug)	7m 35s
Free-Threaded (Debug) (19)	12m 39s
i686-pc-windows-msvc/msvc (Debug)	18m 3s
i686-pc-windows-msvc/msvc (Release)	4m 2s
x86_64-pc-windows-msvc/msvc (Debug)	20m 3s
x86_64-pc-windows-msvc/msvc (Release)	11m 19s
aarch64-pc-windows-msvc/msvc (Debug)	5m 3s
aarch64-pc-windows-msvc/msvc (Release)	6m 18s
x86_64-apple-darwin/clang (Debug)	12m 16s
x86_64-apple-darwin/clang (Release)	11m 58s
aarch64-apple-darwin/clang (Debug)	8m 29s
aarch64-apple-darwin/clang (Release)	9m 27s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 47s
x86_64-unknown-linux-gnu/gcc (Release)	5m 46s
aarch64-unknown-linux-gnu/gcc (Debug)	5m 42s
aarch64-unknown-linux-gnu/gcc (Release)	4m 46s
	2h 32m 13s

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