JIT

gh-137840: Document PEP 728 (#149207) #7178

Job	Run time
Interpreter (Debug)	11m 57s
Free-Threaded (Debug)	3m 57s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 3s
JIT with tail calling interpreter	4m 6s
x86_64-unknown-linux-gnu/gcc (Release)	8m 37s
JIT without optimizations (Debug)	3m 11s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 42s
aarch64-unknown-linux-gnu/gcc (Release)	6m 48s
x86_64-pc-windows-msvc/msvc (Release)	15m 9s
x86_64-apple-darwin/clang (Release)	30m 46s
aarch64-pc-windows-msvc/msvc (Release)	18m 49s
x86_64-pc-windows-msvc/msvc (Debug)	31m 41s
aarch64-apple-darwin/clang (Debug)	19m 44s
x86_64-apple-darwin/clang (Debug)	28m 26s
aarch64-pc-windows-msvc/msvc (Debug)	26m 43s
aarch64-apple-darwin/clang (Release)	14m 37s
i686-pc-windows-msvc/msvc (Release)	17m 34s
i686-pc-windows-msvc/msvc (Debug)	29m 29s
	4h 54m 19s

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