JIT

GH-127809: Fix the JIT's understanding of ** (GH-127844) #2438

Job	Run time
Interpreter (Debug)	7m 49s
Free-Threaded (Debug) (19)	12m 21s
i686-pc-windows-msvc/msvc (Debug)	18m 6s
i686-pc-windows-msvc/msvc (Release)	11m 14s
x86_64-pc-windows-msvc/msvc (Debug)	17m 48s
x86_64-pc-windows-msvc/msvc (Release)	11m 24s
aarch64-pc-windows-msvc/msvc (Debug)	5m 10s
aarch64-pc-windows-msvc/msvc (Release)	6m 2s
x86_64-apple-darwin/clang (Debug)	12m 9s
x86_64-apple-darwin/clang (Release)	7m 26s
aarch64-apple-darwin/clang (Debug)	8m 55s
aarch64-apple-darwin/clang (Release)	8m 27s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 37s
x86_64-unknown-linux-gnu/gcc (Release)	6m 26s
aarch64-unknown-linux-gnu/gcc (Debug)	10m 56s
aarch64-unknown-linux-gnu/gcc (Release)	10m 8s
	2h 42m 58s

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