JIT

GH-127705: Add debug mode for `_PyStackRef`s inspired by HPy debug mode #2386

Job	Run time
Interpreter (Debug)	7m 59s
Free-Threaded (Debug) (19)	5m 41s
i686-pc-windows-msvc/msvc (Debug)	5m 24s
i686-pc-windows-msvc/msvc (Release)	5m 27s
x86_64-pc-windows-msvc/msvc (Debug)	5m 25s
x86_64-pc-windows-msvc/msvc (Release)	5m 23s
aarch64-pc-windows-msvc/msvc (Debug)	5m 22s
aarch64-pc-windows-msvc/msvc (Release)	5m 22s
x86_64-apple-darwin/clang (Debug)	3m 57s
x86_64-apple-darwin/clang (Release)	5m 44s
aarch64-apple-darwin/clang (Debug)	5m 43s
aarch64-apple-darwin/clang (Release)	5m 41s
x86_64-unknown-linux-gnu/gcc (Debug)	5m 40s
x86_64-unknown-linux-gnu/gcc (Release)	5m 35s
aarch64-unknown-linux-gnu/gcc (Debug)	56s
aarch64-unknown-linux-gnu/gcc (Release)	5m 18s
	1h 24m 37s

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