JIT

gh-148925: Add safe PyUnstable_* APIs for call-stack iteration #6599

Job	Run time
Interpreter (Debug)	12m 35s
Free-Threaded (Debug)	4m 42s
aarch64-apple-darwin/clang (Release)	16m 37s
x86_64-apple-darwin/clang (Release)	34m 5s
JIT with tail calling interpreter	5m 16s
JIT without optimizations (Debug)	4m 30s
x86_64-apple-darwin/clang (Debug)	34m 2s
aarch64-unknown-linux-gnu/gcc (Debug)	10m 21s
aarch64-apple-darwin/clang (Debug)	16m 13s
aarch64-pc-windows-msvc/msvc (Debug)	28m 20s
i686-pc-windows-msvc/msvc (Debug)	31m 11s
x86_64-pc-windows-msvc/msvc (Debug)	31m 55s
i686-pc-windows-msvc/msvc (Release)	19m 6s
x86_64-pc-windows-msvc/msvc (Release)	15m 30s
aarch64-pc-windows-msvc/msvc (Release)	20m 57s
x86_64-unknown-linux-gnu/gcc (Release)	11m 49s
x86_64-unknown-linux-gnu/gcc (Debug)	16m 6s
aarch64-unknown-linux-gnu/gcc (Release)	8m 54s
	5h 22m 9s

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