Tests

[mypyc] Borrow final attributes more aggressively #22679

Job	Run time
Test mypyc suite with 32-bit Python	8m 5s
Test suite with py313-ubuntu, mypyc-compiled	8m 0s
Test suite with py311-ubuntu	8m 3s
Test suite with py310-ubuntu, mypyc-compiled	7m 45s
Test suite with py315-ubuntu, mypyc-compiled	7m 50s
Test suite with py312-ubuntu	8m 2s
Type check our own code (py310-windows-64)	1m 59s
Parallel tests with py314-ubuntu, mypyc-compiled	8m 7s
Test suite with py314-ubuntu, mypyc-compiled	7m 47s
mypyc runtime tests with py313-macos	6m 10s
Parallel tests with py314-ubuntu, interpreted	7m 48s
Test suite with py314t-ubuntu, mypyc-compiled	7m 58s
Type check our own code (py310-ubuntu)	1m 5s
Parallel tests with py314-windows-64, interpreted	8m 5s
Test suite with py314-windows-64	7m 53s
Formatting and code style with Black + ruff	1m 55s
mypyc runtime tests with py310-ubuntu	6m 12s
	1h 52m 44s

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