JIT

gh-143732: allow dict subclasses to be specialized #6367

Job	Run time
aarch64-apple-darwin/clang (Debug)	15m 36s
x86_64-unknown-linux-gnu/gcc (Debug)	15m 7s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 5s
JIT without optimizations (Debug)	3m 29s
Interpreter (Debug)	11m 25s
aarch64-unknown-linux-gnu/gcc (Release)	6m 20s
x86_64-apple-darwin/clang (Debug)	15m 28s
x86_64-unknown-linux-gnu/gcc (Release)	8m 40s
aarch64-apple-darwin/clang (Release)	13m 51s
i686-pc-windows-msvc/msvc (Release)	15m 49s
x86_64-pc-windows-msvc/msvc (Debug)	15m 48s
i686-pc-windows-msvc/msvc (Debug)	16m 6s
aarch64-pc-windows-msvc/msvc (Debug)	16m 3s
JIT with tail calling interpreter	5m 12s
x86_64-apple-darwin/clang (Release)	16m 23s
x86_64-pc-windows-msvc/msvc (Release)	15m 21s
aarch64-pc-windows-msvc/msvc (Release)	15m 32s
Free-Threaded (Debug)	3m 45s
	3h 39m 0s

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