JIT

GH-115869: Reference implementation for hosting JIT stencils #2898

Job	Run time
Interpreter (Debug)	8m 29s
Free-Threaded (Debug) (19)	13m 32s
i686-pc-windows-msvc/msvc (Debug)	18m 6s
i686-pc-windows-msvc/msvc (Release)	11m 53s
x86_64-pc-windows-msvc/msvc (Debug)	19m 12s
x86_64-pc-windows-msvc/msvc (Release)	12m 29s
aarch64-pc-windows-msvc/msvc (Debug)	5m 46s
aarch64-pc-windows-msvc/msvc (Release)	6m 12s
x86_64-apple-darwin/clang (Debug)	9m 53s
x86_64-apple-darwin/clang (Release)	1h 30m 15s
aarch64-apple-darwin/clang (Debug)	14m 17s
aarch64-apple-darwin/clang (Release)	12m 44s
x86_64-pc-linux-gnu/gcc (Debug)	9m 38s
x86_64-pc-linux-gnu/gcc (Release)	6m 9s
aarch64-unknown-linux-gnu/gcc (Debug)	11m 28s
aarch64-unknown-linux-gnu/gcc (Release)	1h 30m 13s
Aggregate stencil patches	7s
	5h 40m 23s

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