JIT

gh-144991: Use runtime JIT threshold in _testinternalcapi (gh-145496) #5426

Job	Run time
Interpreter (Debug)	12m 7s
JIT without optimizations (Debug)	3m 33s
Free-Threaded (Debug)	3m 4s
aarch64-apple-darwin/clang (Release)	11m 50s
aarch64-apple-darwin/clang (Debug)	13m 56s
aarch64-pc-windows-msvc/msvc (Debug)	24m 42s
x86_64-pc-windows-msvc/msvc (Debug)	26m 46s
x86_64-pc-windows-msvc/msvc (Release)	15m 21s
JIT with tail calling interpreter	4m 28s
x86_64-unknown-linux-gnu/gcc (Release)	9m 6s
x86_64-unknown-linux-gnu/gcc (Debug)	13m 24s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 21s
x86_64-apple-darwin/clang (Debug)	31m 54s
aarch64-pc-windows-msvc/msvc (Release)	18m 46s
i686-pc-windows-msvc/msvc (Release)	14m 49s
i686-pc-windows-msvc/msvc (Debug)	28m 31s
x86_64-apple-darwin/clang (Release)	28m 26s
aarch64-unknown-linux-gnu/gcc (Release)	6m 54s
	4h 36m 58s

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