Tests

Mark librt.time.time() non-experimental #21907

Job	Run time
Test mypyc suite with 32-bit Python	10m 6s
Test suite with py312-ubuntu	9m 35s
Test suite with py310-ubuntu, mypyc-compiled	16m 20s
Test suite with py314t-ubuntu, mypyc-compiled	18m 4s
Test suite with py314-ubuntu, mypyc-compiled	16m 28s
Test suite with py313-ubuntu, mypyc-compiled	15m 8s
Parallel tests with py314-ubuntu, interpreted	24m 37s
Test suite with py311-ubuntu	9m 7s
Test suite with py314-windows-64	30m 10s
Parallel tests with py314-ubuntu, mypyc-compiled	27m 52s
mypyc runtime tests with py310-ubuntu	7m 7s
Formatting and code style with Black + ruff	1m 51s
Type check our own code (py310-ubuntu)	1m 13s
mypyc runtime tests with py313-macos	6m 51s
Parallel tests with py314-windows-64, interpreted	13m 27s
Type check our own code (py310-windows-64)	2m 22s
	3h 30m 18s

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