JIT

gh-115999: Specialize `LOAD_ATTR` for instance and class receivers in free-threaded builds #2426

Job	Run time
Interpreter (Debug)	7m 55s
Free-Threaded (Debug) (19)	12m 12s
i686-pc-windows-msvc/msvc (Debug)	18m 14s
i686-pc-windows-msvc/msvc (Release)	11m 34s
x86_64-pc-windows-msvc/msvc (Debug)	17m 51s
x86_64-pc-windows-msvc/msvc (Release)	11m 3s
aarch64-pc-windows-msvc/msvc (Debug)	5m 13s
aarch64-pc-windows-msvc/msvc (Release)	6m 2s
x86_64-apple-darwin/clang (Debug)	11m 46s
x86_64-apple-darwin/clang (Release)	10m 0s
aarch64-apple-darwin/clang (Debug)	8m 41s
aarch64-apple-darwin/clang (Release)	9m 24s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 27s
x86_64-unknown-linux-gnu/gcc (Release)	6m 31s
aarch64-unknown-linux-gnu/gcc (Debug)	13m 16s
aarch64-unknown-linux-gnu/gcc (Release)	9m 3s
	2h 47m 12s

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