JIT

gh-143732: allow dict subclasses to be specialized #6371

Job	Run time
Interpreter (Debug)	3m 36s
JIT with tail calling interpreter	3m 36s
aarch64-unknown-linux-gnu/gcc (Debug)	2m 53s
Free-Threaded (Debug)	2m 45s
JIT without optimizations (Debug)	2m 46s
x86_64-unknown-linux-gnu/gcc (Release)	2m 46s
x86_64-apple-darwin/clang (Debug)	2m 48s
aarch64-unknown-linux-gnu/gcc (Release)	3m 36s
x86_64-unknown-linux-gnu/gcc (Debug)	2m 47s
aarch64-apple-darwin/clang (Release)	2m 49s
x86_64-apple-darwin/clang (Release)	2m 54s
aarch64-apple-darwin/clang (Debug)	2m 56s
i686-pc-windows-msvc/msvc (Debug)	2m 54s
x86_64-pc-windows-msvc/msvc (Debug)	3m 33s
aarch64-pc-windows-msvc/msvc (Release)	2m 48s
i686-pc-windows-msvc/msvc (Release)	2m 44s
x86_64-pc-windows-msvc/msvc (Release)	2m 46s
aarch64-pc-windows-msvc/msvc (Debug)	2m 57s
	53m 54s

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