JIT

gh-142889: Improve layout of dictionary keys #6706

Job	Run time
Interpreter (Debug)	12m 37s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 56s
Free-Threaded (Debug)	3m 31s
JIT with tail calling interpreter	4m 19s
aarch64-unknown-linux-gnu/gcc (Release)	7m 21s
JIT without optimizations (Debug)	4m 9s
x86_64-apple-darwin/clang (Release)	35m 8s
x86_64-unknown-linux-gnu/gcc (Release)	9m 30s
aarch64-unknown-linux-gnu/gcc (Debug)	10m 38s
x86_64-apple-darwin/clang (Debug)	33m 36s
i686-pc-windows-msvc/msvc (Debug)	25m 16s
aarch64-apple-darwin/clang (Release)	13m 37s
aarch64-pc-windows-msvc/msvc (Debug)	26m 21s
x86_64-pc-windows-msvc/msvc (Debug)	26m 47s
aarch64-apple-darwin/clang (Debug)	15m 57s
x86_64-pc-windows-msvc/msvc (Release)	15m 51s
i686-pc-windows-msvc/msvc (Release)	16m 29s
aarch64-pc-windows-msvc/msvc (Release)	17m 48s
	4h 53m 51s

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