JIT

gh-115999: Specialize `LOAD_ATTR` for instance and class receivers in free-threaded builds #2404

Job	Run time
Interpreter (Debug)	7m 39s
Free-Threaded (Debug) (19)	12m 17s
i686-pc-windows-msvc/msvc (Debug)	17m 14s
i686-pc-windows-msvc/msvc (Release)	10m 24s
x86_64-pc-windows-msvc/msvc (Debug)	17m 58s
x86_64-pc-windows-msvc/msvc (Release)	11m 0s
aarch64-pc-windows-msvc/msvc (Debug)	4m 58s
aarch64-pc-windows-msvc/msvc (Release)	6m 10s
x86_64-apple-darwin/clang (Debug)	13m 51s
x86_64-apple-darwin/clang (Release)	10m 3s
aarch64-apple-darwin/clang (Debug)	9m 42s
aarch64-apple-darwin/clang (Release)	8m 33s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 36s
x86_64-unknown-linux-gnu/gcc (Release)	5m 51s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 27s
aarch64-unknown-linux-gnu/gcc (Release)	10m 27s
	2h 44m 10s

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