Tests

Micro-optimize cache primitives in librt.internal #19316

Job	Run time
Test mypyc suite with 32-bit Python	10m 5s
Test suite with py39-ubuntu, mypyc-compiled	7m 9s
Test suite with py314-ubuntu, mypyc-compiled	6m 5s
Test suite with py313-ubuntu, mypyc-compiled	6m 5s
Test suite with py314-windows-64	26m 2s
Test suite with py311-ubuntu	9m 10s
Test suite with py310-ubuntu	12m 4s
Test suite with py312-ubuntu, mypyc-compiled	6m 8s
Type check our own code (py39-ubuntu)	1m 46s
Formatting and code style with Black + ruff	2m 39s
mypyc runtime tests with py313-macos	5m 37s
mypyc runtime tests with py310-ubuntu	4m 54s
Type check our own code (py39-windows-64)	2m 7s
	1h 39m 51s

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