Tests

Fix false positive for NamedTuple subtype of TupleType #22369

Job	Run time
Test suite with py311-ubuntu	9m 38s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 47s
Test suite with py314-ubuntu, mypyc-compiled	16m 6s
Test suite with py310-ubuntu, mypyc-compiled	17m 26s
Type check our own code (py310-windows-64)	2m 1s
Test suite with py313-ubuntu, mypyc-compiled	16m 18s
Test suite with py312-ubuntu	10m 26s
Test mypyc suite with 32-bit Python	10m 42s
mypyc runtime tests with py313-macos	6m 6s
Parallel tests with py314-ubuntu, interpreted	27m 43s
mypyc runtime tests with py310-ubuntu	6m 49s
Test suite with py314-windows-64	29m 6s
Test suite with py314t-ubuntu, mypyc-compiled	18m 52s
Formatting and code style with Black + ruff	1m 55s
Test suite with py315-ubuntu, mypyc-compiled	16m 22s
Type check our own code (py310-ubuntu)	1m 4s
Parallel tests with py314-windows-64, interpreted	13m 25s
	3h 52m 46s

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