Tests

Implement disable ignores, a flag which disables all type ignores #21558

Job	Run time
Test mypyc suite with 32-bit Python	10m 43s
Test suite with py312-ubuntu	10m 7s
Test suite with py313-ubuntu, mypyc-compiled	16m 9s
Test suite with py314t-ubuntu, mypyc-compiled	20m 8s
Test suite with py314-ubuntu, mypyc-compiled	16m 38s
Test suite with py310-ubuntu, mypyc-compiled	16m 32s
Test suite with py311-ubuntu	10m 31s
Type check our own code (py310-ubuntu)	1m 47s
Parallel tests with py314-ubuntu, interpreted	24m 13s
Parallel tests with py314-windows-64, interpreted	11m 0s
mypyc runtime tests with py310-ubuntu	6m 32s
mypyc runtime tests with py313-macos	4m 52s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 41s
Type check our own code (py310-windows-64)	2m 54s
Test suite with py314-windows-64	28m 6s
Formatting and code style with Black + ruff	1m 49s
	3h 30m 42s

Provide feedback