Tests

Wrap callable in union syntax #19742

Job	Run time
Test mypyc suite with 32-bit Python	9m 28s
Test suite with py314t-ubuntu, mypyc-compiled	15m 40s
Test suite with py310-ubuntu, mypyc-compiled	13m 18s
Test suite with py312-ubuntu	9m 57s
Test suite with py311-ubuntu	9m 0s
Type check our own code (py310-windows-64)	2m 33s
mypyc runtime tests with py313-macos	5m 54s
Type check our own code (py310-ubuntu)	1m 40s
Test suite with py313-ubuntu, mypyc-compiled	13m 55s
mypyc runtime tests with py310-ubuntu	5m 2s
Parallel tests with py314-ubuntu, interpreted	21m 57s
Parallel tests with py314-ubuntu, mypyc-compiled	26m 23s
Test suite with py314-ubuntu, mypyc-compiled	14m 21s
Test suite with py314-windows-64	26m 41s
Formatting and code style with Black + ruff	1m 59s
	2h 57m 48s

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