JIT

GH-127705: Add debug mode for `_PyStackRef`s inspired by HPy debug mo… #2394

Job	Run time
Interpreter (Debug)	7m 38s
i686-pc-windows-msvc/msvc (Debug)	18m 37s
Free-Threaded (Debug) (19)	12m 54s
i686-pc-windows-msvc/msvc (Release)	11m 11s
x86_64-pc-windows-msvc/msvc (Debug)	17m 57s
x86_64-pc-windows-msvc/msvc (Release)	11m 6s
aarch64-pc-windows-msvc/msvc (Debug)	4m 3s
aarch64-pc-windows-msvc/msvc (Release)	6m 11s
x86_64-apple-darwin/clang (Debug)	11m 59s
x86_64-apple-darwin/clang (Release)	9m 23s
aarch64-apple-darwin/clang (Debug)	9m 16s
aarch64-apple-darwin/clang (Release)	9m 28s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 50s
x86_64-unknown-linux-gnu/gcc (Release)	5m 36s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 59s
aarch64-unknown-linux-gnu/gcc (Release)	8m 40s
	2h 40m 48s

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