Tests

Don't check plugin-generated functions #11767

Job	Run time
Test mypyc suite with 32-bit Python	8m 0s
Test suite with py38-ubuntu, mypyc-compiled	20m 27s
Test suite with py38-windows-64	27m 17s
Test suite with py39-ubuntu	19m 22s
Test suite with py310-ubuntu	18m 7s
Test suite with py311-ubuntu, mypyc-compiled	17m 23s
Test suite with py312-ubuntu, mypyc-compiled	21m 39s
mypyc runtime tests with py39-macos	4m 58s
mypyc runtime tests with py38-debug-build-ubuntu	5m 16s
Type check our own code (py38-ubuntu)	1m 40s
Type check our own code (py38-windows-64)	2m 16s
Formatting and code style with Black + ruff	33s
	2h 26m 58s

Provide feedback