JIT

gh-149965: Improve thread-safety in ElementObjects within `element_ass_subscr` #6729

Job	Run time
x86_64-unknown-linux-gnu/gcc (Release)	9m 17s
x86_64-apple-darwin/clang (Debug)	9m 24s
x86_64-unknown-linux-gnu/gcc (Debug)	9m 18s
JIT with tail calling interpreter	4m 42s
x86_64-pc-windows-msvc/msvc (Debug)	9m 21s
i686-pc-windows-msvc/msvc (Release)	9m 10s
aarch64-unknown-linux-gnu/gcc (Release)	7m 19s
JIT without optimizations (Debug)	4m 46s
aarch64-apple-darwin/clang (Release)	9m 25s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 16s
i686-pc-windows-msvc/msvc (Debug)	9m 8s
aarch64-pc-windows-msvc/msvc (Release)	9m 13s
x86_64-apple-darwin/clang (Release)	9m 24s
Free-Threaded (Debug)	4m 16s
Interpreter (Debug)	9m 19s
aarch64-apple-darwin/clang (Debug)	9m 53s
aarch64-pc-windows-msvc/msvc (Debug)	9m 11s
x86_64-pc-windows-msvc/msvc (Release)	9m 10s
	2h 31m 32s

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