JIT

gh-131798: Add `_IS_NONE` to the JIT optimizer #6037

Job	Run time
Interpreter (Debug)	12m 55s
JIT without optimizations (Debug)	3m 24s
JIT with tail calling interpreter	4m 1s
Free-Threaded (Debug)	3m 41s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 11s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 6s
x86_64-apple-darwin/clang (Debug)	36m 53s
aarch64-apple-darwin/clang (Release)	12m 45s
aarch64-unknown-linux-gnu/gcc (Release)	6m 50s
x86_64-pc-windows-msvc/msvc (Debug)	30m 44s
x86_64-unknown-linux-gnu/gcc (Release)	8m 58s
aarch64-pc-windows-msvc/msvc (Debug)	28m 1s
aarch64-pc-windows-msvc/msvc (Release)	18m 41s
aarch64-apple-darwin/clang (Debug)	13m 2s
i686-pc-windows-msvc/msvc (Release)	15m 3s
i686-pc-windows-msvc/msvc (Debug)	25m 40s
x86_64-pc-windows-msvc/msvc (Release)	14m 20s
x86_64-apple-darwin/clang (Release)	22m 33s
	4h 40m 48s

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