JIT

gh-115999: Specialize `LOAD_ATTR` for instance and class receivers in free-threaded builds #2407

Job	Run time
Interpreter (Debug)	8m 3s
Free-Threaded (Debug) (19)	12m 24s
i686-pc-windows-msvc/msvc (Debug)	18m 57s
i686-pc-windows-msvc/msvc (Release)	11m 23s
x86_64-pc-windows-msvc/msvc (Debug)	17m 37s
x86_64-pc-windows-msvc/msvc (Release)	11m 13s
aarch64-pc-windows-msvc/msvc (Debug)	4m 56s
aarch64-pc-windows-msvc/msvc (Release)	6m 17s
x86_64-apple-darwin/clang (Debug)	14m 17s
x86_64-apple-darwin/clang (Release)	12m 43s
aarch64-apple-darwin/clang (Debug)	8m 39s
aarch64-apple-darwin/clang (Release)	9m 37s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 34s
x86_64-unknown-linux-gnu/gcc (Release)	5m 37s
aarch64-unknown-linux-gnu/gcc (Debug)	11m 33s
aarch64-unknown-linux-gnu/gcc (Release)	9m 7s
	2h 50m 57s

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