JIT

gh-143995: Eliminate redundant refcounting in the JIT from LOAD_ATTR_… #5127

Job	Run time
Interpreter (Debug)	10m 52s
JIT with tail calling interpreter (21)	4m 31s
Free-Threaded (Debug) (21)	16m 52s
JIT without optimizations (Debug) (21)	12m 53s
i686-pc-windows-msvc/msvc (Release)	15m 49s
aarch64-pc-windows-msvc/msvc (Debug)	22m 17s
i686-pc-windows-msvc/msvc (Debug)	25m 27s
x86_64-pc-windows-msvc/msvc (Release)	14m 31s
aarch64-apple-darwin/clang (Release)	13m 52s
aarch64-pc-windows-msvc/msvc (Release)	17m 30s
x86_64-unknown-linux-gnu/gcc (Debug)	12m 43s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 36s
x86_64-unknown-linux-gnu/gcc (Release)	8m 22s
x86_64-pc-windows-msvc/msvc (Debug)	25m 24s
aarch64-apple-darwin/clang (Debug)	15m 21s
aarch64-unknown-linux-gnu/gcc (Release)	7m 10s
x86_64-apple-darwin/clang (Release)	23m 55s
x86_64-apple-darwin/clang (Debug)	37m 20s
	4h 53m 25s

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