Tests

Implement disable ignores, a flag which disables all type ignores #21557

Job	Run time
Test mypyc suite with 32-bit Python	10m 27s
Parallel tests with py314-ubuntu, interpreted	23m 9s
Formatting and code style with Black + ruff	1m 49s
Parallel tests with py314-ubuntu, mypyc-compiled	26m 37s
Test suite with py310-ubuntu, mypyc-compiled	17m 38s
Test suite with py313-ubuntu, mypyc-compiled	15m 42s
Test suite with py314t-ubuntu, mypyc-compiled	20m 10s
Test suite with py312-ubuntu	10m 38s
Type check our own code (py310-ubuntu)	1m 42s
mypyc runtime tests with py313-macos	4m 57s
Test suite with py314-windows-64	29m 9s
Test suite with py311-ubuntu	10m 4s
mypyc runtime tests with py310-ubuntu	6m 48s
Parallel tests with py314-windows-64, interpreted	10m 38s
Test suite with py314-ubuntu, mypyc-compiled	17m 14s
Type check our own code (py310-windows-64)	2m 9s
	3h 28m 51s

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