JIT

gh-115999: Specialize `LOAD_ATTR` for instance and class receivers in free-threaded builds #2443

Job	Run time
Interpreter (Debug)	7m 36s
Free-Threaded (Debug) (19)	12m 17s
i686-pc-windows-msvc/msvc (Debug)	19m 8s
i686-pc-windows-msvc/msvc (Release)	10m 53s
x86_64-pc-windows-msvc/msvc (Debug)	18m 32s
x86_64-pc-windows-msvc/msvc (Release)	11m 2s
aarch64-pc-windows-msvc/msvc (Debug)	4m 55s
aarch64-pc-windows-msvc/msvc (Release)	6m 12s
x86_64-apple-darwin/clang (Debug)	14m 43s
x86_64-apple-darwin/clang (Release)	10m 15s
aarch64-apple-darwin/clang (Debug)	8m 35s
aarch64-apple-darwin/clang (Release)	8m 36s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 28s
x86_64-unknown-linux-gnu/gcc (Release)	5m 35s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 14s
aarch64-unknown-linux-gnu/gcc (Release)	6m 20s
	2h 41m 21s

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