JIT

GH-127705: Add debug mode for `_PyStackRef`s inspired by HPy debug mode #2392

Job	Run time
Interpreter (Debug)	7m 42s
i686-pc-windows-msvc/msvc (Debug)	16m 26s
Free-Threaded (Debug) (19)	13m 6s
i686-pc-windows-msvc/msvc (Release)	11m 39s
x86_64-pc-windows-msvc/msvc (Debug)	16m 28s
x86_64-pc-windows-msvc/msvc (Release)	11m 12s
aarch64-pc-windows-msvc/msvc (Debug)	4m 50s
aarch64-pc-windows-msvc/msvc (Release)	7m 5s
x86_64-apple-darwin/clang (Debug)	13m 36s
x86_64-apple-darwin/clang (Release)	12m 56s
aarch64-apple-darwin/clang (Debug)	10m 3s
aarch64-apple-darwin/clang (Release)	7m 59s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 32s
x86_64-unknown-linux-gnu/gcc (Release)	5m 38s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 42s
aarch64-unknown-linux-gnu/gcc (Release)	5m 51s
	2h 41m 45s

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