Tests

[mypyc] Fix debug warnings/assertions from vecs #22034

Job	Run time
Test mypyc suite with 32-bit Python	1m 44s
Test suite with py311-ubuntu	1m 57s
Test suite with py314-ubuntu, mypyc-compiled	1m 57s
Test suite with py312-ubuntu	1m 55s
Test suite with py310-ubuntu, mypyc-compiled	1m 57s
Test suite with py314t-ubuntu, mypyc-compiled	1m 56s
Test suite with py313-ubuntu, mypyc-compiled	1m 56s
Type check our own code (py310-windows-64)	1m 46s
Parallel tests with py314-ubuntu, interpreted	1m 57s
mypyc runtime tests with py310-ubuntu	1m 55s
Parallel tests with py314-ubuntu, mypyc-compiled	1m 57s
mypyc runtime tests with py313-macos	2m 0s
Type check our own code (py310-ubuntu)	1m 6s
Formatting and code style with Black + ruff	1m 56s
Test suite with py314-windows-64	1m 50s
Parallel tests with py314-windows-64, interpreted	1m 47s
	29m 36s

Provide feedback