JIT

Reference implementation for PEP 828 #6613

Job	Run time
JIT without optimizations (Debug)	4m 15s
x86_64-apple-darwin/clang (Release)	33m 36s
JIT with tail calling interpreter	4m 8s
aarch64-unknown-linux-gnu/gcc (Release)	7m 30s
x86_64-unknown-linux-gnu/gcc (Release)	21m 36s
Free-Threaded (Debug)	4m 25s
i686-pc-windows-msvc/msvc (Debug)	26m 15s
Interpreter (Debug)	13m 52s
aarch64-apple-darwin/clang (Release)	14m 37s
x86_64-unknown-linux-gnu/gcc (Debug)	15m 56s
x86_64-apple-darwin/clang (Debug)	53m 23s
aarch64-pc-windows-msvc/msvc (Debug)	25m 16s
i686-pc-windows-msvc/msvc (Release)	16m 10s
x86_64-pc-windows-msvc/msvc (Debug)	25m 13s
aarch64-pc-windows-msvc/msvc (Release)	18m 57s
x86_64-pc-windows-msvc/msvc (Release)	14m 38s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 39s
aarch64-apple-darwin/clang (Debug)	17m 10s
	5h 26m 36s

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