JIT

gh-142889: Improve layout of dictionary keys #6840

Job	Run time
Free-Threaded (Debug)	4m 6s
x86_64-unknown-linux-gnu/gcc (Debug)	15m 14s
aarch64-unknown-linux-gnu/gcc (Release)	7m 29s
x86_64-apple-darwin/clang (Debug)	42m 30s
JIT with tail calling interpreter	3m 41s
aarch64-apple-darwin/clang (Debug)	16m 4s
x86_64-unknown-linux-gnu/gcc (Release)	8m 0s
Interpreter (Debug)	13m 1s
x86_64-pc-windows-msvc/msvc (Release)	16m 48s
JIT with stress testing (Debug)	3m 49s
aarch64-pc-windows-msvc/msvc (Debug)	25m 36s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 47s
JIT without optimizations (Debug)	3m 40s
i686-pc-windows-msvc/msvc (Release)	16m 53s
x86_64-pc-windows-msvc/msvc (Debug)	25m 8s
i686-pc-windows-msvc/msvc (Debug)	29m 24s
aarch64-pc-windows-msvc/msvc (Release)	19m 10s
x86_64-apple-darwin/clang (Release)	30m 17s
aarch64-apple-darwin/clang (Release)	15m 9s
	5h 5m 46s

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