JIT

gh-152666: Avoid reference counting of code objects #6998

Job	Run time
x86_64-unknown-linux-gnu/gcc (Debug)	16m 58s
x86_64-unknown-linux-gnu/gcc (Release)	10m 6s
aarch64-unknown-linux-gnu/gcc (Release)	7m 6s
Interpreter (Debug)	15m 9s
aarch64-apple-darwin/clang (Release)	16m 50s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 23s
Free-Threaded (Debug)	4m 16s
x86_64-pc-windows-msvc/msvc (Release)	16m 39s
JIT with tail calling interpreter	5m 3s
JIT without optimizations (Debug)	4m 13s
x86_64-apple-darwin/clang (Debug)	44m 43s
i686-pc-windows-msvc/msvc (Release)	17m 36s
x86_64-pc-windows-msvc/msvc (Debug)	26m 58s
JIT with stress testing (Debug)	4m 5s
aarch64-apple-darwin/clang (Debug)	22m 42s
aarch64-pc-windows-msvc/msvc (Release)	20m 22s
aarch64-pc-windows-msvc/msvc (Debug)	28m 34s
i686-pc-windows-msvc/msvc (Debug)	21m 56s
x86_64-apple-darwin/clang (Release)	26m 41s
	5h 19m 20s

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