JIT

GH-127705: Add debug mode for `_PyStackRef`s inspired by HPy debug mode #2388

Job	Run time
Interpreter (Debug)	7m 36s
Free-Threaded (Debug) (19)	12m 38s
i686-pc-windows-msvc/msvc (Debug)	18m 20s
i686-pc-windows-msvc/msvc (Release)	11m 39s
x86_64-pc-windows-msvc/msvc (Debug)	18m 30s
x86_64-pc-windows-msvc/msvc (Release)	10m 48s
aarch64-pc-windows-msvc/msvc (Debug)	4m 2s
aarch64-pc-windows-msvc/msvc (Release)	5m 23s
x86_64-apple-darwin/clang (Debug)	13m 19s
x86_64-apple-darwin/clang (Release)	9m 51s
aarch64-apple-darwin/clang (Debug)	8m 48s
aarch64-apple-darwin/clang (Release)	8m 43s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 43s
x86_64-unknown-linux-gnu/gcc (Release)	5m 56s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 43s
aarch64-unknown-linux-gnu/gcc (Release)	5m 48s
	2h 37m 47s

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