JIT

gh-142889: Improve layout of dictionary keys #7023

Job	Run time
Interpreter (Debug)	11m 52s
Free-Threaded (Debug)	4m 24s
x86_64-unknown-linux-gnu/gcc (Debug)	16m 42s
x86_64-apple-darwin/clang (Debug)	39m 26s
JIT with stress testing (Debug)	4m 9s
JIT without optimizations (Debug)	4m 16s
x86_64-apple-darwin/clang (Release)	25m 50s
aarch64-apple-darwin/clang (Release)	15m 53s
JIT with tail calling interpreter	5m 17s
aarch64-apple-darwin/clang (Debug)	14m 28s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 2s
x86_64-pc-windows-msvc/msvc (Debug)	25m 27s
aarch64-pc-windows-msvc/msvc (Release)	19m 2s
aarch64-unknown-linux-gnu/gcc (Release)	6m 35s
i686-pc-windows-msvc/msvc (Debug)	28m 50s
aarch64-pc-windows-msvc/msvc (Debug)	26m 14s
x86_64-pc-windows-msvc/msvc (Release)	1h 0m 5s
x86_64-unknown-linux-gnu/gcc (Release)	11m 7s
i686-pc-windows-msvc/msvc (Release)	16m 37s
	5h 45m 16s

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