Tests

Error handling for recursive TypeVar defaults (PEP 696) #12070

Job	Run time
Test mypyc suite with 32-bit Python	7m 53s
Test suite with py38-ubuntu, mypyc-compiled	20m 19s
Test suite with py38-windows-64	27m 10s
Test suite with py39-ubuntu	18m 56s
Test suite with py310-ubuntu	18m 5s
Test suite with py311-ubuntu, mypyc-compiled	18m 6s
Test suite with py312-ubuntu, mypyc-compiled	20m 5s
mypyc runtime tests with py39-macos	6m 37s
mypyc runtime tests with py38-debug-build-ubuntu	5m 23s
Type check our own code (py38-ubuntu)	1m 44s
Type check our own code (py38-windows-64)	2m 31s
Formatting and code style with Black + ruff	40s
	2h 27m 29s

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