JIT

gh-134584: Eliminate redundant refcounting from `_UNPACK_SEQUENCE_TWO_TUPLE` #4842

Job	Run time
Interpreter (Debug)	11m 20s
JIT with tail calling interpreter (21)	4m 19s
JIT without optimizations (Debug) (21)	13m 6s
Free-Threaded (Debug) (21)	17m 47s
aarch64-pc-windows-msvc/msvc (Debug)	23m 10s
x86_64-apple-darwin/clang (Debug)	24m 38s
x86_64-pc-windows-msvc/msvc (Release)	12m 52s
i686-pc-windows-msvc/msvc (Debug)	26m 2s
i686-pc-windows-msvc/msvc (Release)	13m 29s
x86_64-pc-windows-msvc/msvc (Debug)	25m 7s
aarch64-pc-windows-msvc/msvc (Release)	17m 31s
x86_64-apple-darwin/clang (Release)	21m 58s
x86_64-unknown-linux-gnu/gcc (Debug)	12m 36s
aarch64-apple-darwin/clang (Release)	12m 31s
x86_64-unknown-linux-gnu/gcc (Release)	8m 13s
aarch64-apple-darwin/clang (Debug)	14m 10s
aarch64-unknown-linux-gnu/gcc (Release)	6m 24s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 20s
	4h 33m 33s

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