Tests

Better match narrowing for type objects #20996

Job	Run time
Test mypyc suite with 32-bit Python	9m 56s
Test suite with py313-ubuntu, mypyc-compiled	15m 16s
Test suite with py310-ubuntu, mypyc-compiled	15m 26s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 45s
Formatting and code style with Black + ruff	1m 56s
Test suite with py311-ubuntu	8m 19s
Test suite with py314-windows-64	25m 27s
Test suite with py312-ubuntu	8m 41s
Parallel tests with py314-ubuntu, interpreted	23m 43s
Test suite with py314-ubuntu, mypyc-compiled	14m 30s
Type check our own code (py310-ubuntu)	1m 37s
mypyc runtime tests with py310-ubuntu	5m 37s
Test suite with py314t-ubuntu, mypyc-compiled	16m 28s
mypyc runtime tests with py313-macos	5m 53s
Type check our own code (py310-windows-64)	2m 46s
Parallel tests with py314-windows-64, interpreted	10m 29s
	3h 14m 49s

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