gh-146558: optimize dict access with objects with known hash #2526

Job	Run time
x86_64-pc-windows-msvc/msvc	9m 55s
x86_64-pc-windows-msvc/msvc-free-threading	5m 2s
aarch64-apple-darwin/clang	11m 15s
aarch64-unknown-linux-gnu/gcc	6m 46s
x86_64-unknown-linux-gnu/gcc	9m 52s
x86_64-apple-darwin/clang	12m 23s
x86_64-unknown-linux-gnu/gcc-free-threading	8m 19s
	1h 3m 32s

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