Tests

Better narrowing for enums and other types with known equality #21831

Job	Run time
Test mypyc suite with 32-bit Python	2m 11s
Test suite with py314-windows-64	2m 16s
Test suite with py314t-ubuntu, mypyc-compiled	2m 22s
mypyc runtime tests with py310-ubuntu	2m 23s
Parallel tests with py314-ubuntu, interpreted	2m 25s
mypyc runtime tests with py313-macos	2m 26s
Test suite with py312-ubuntu	2m 23s
Test suite with py314-ubuntu, mypyc-compiled	2m 45s
Test suite with py310-ubuntu, mypyc-compiled	2m 23s
Parallel tests with py314-windows-64, interpreted	2m 15s
Parallel tests with py314-ubuntu, mypyc-compiled	2m 23s
Type check our own code (py310-ubuntu)	1m 16s
Formatting and code style with Black + ruff	1m 47s
Test suite with py313-ubuntu, mypyc-compiled	2m 23s
Type check our own code (py310-windows-64)	2m 11s
Test suite with py311-ubuntu	2m 25s
	36m 14s

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