Tests

[mypyc] Fix vtable pointer with inherited dunder new #19492

Job	Run time
Test mypyc suite with 32-bit Python	8m 26s
Test suite with py310-ubuntu	12m 30s
Test suite with py311-ubuntu	9m 14s
Test suite with py314-ubuntu, mypyc-compiled	14m 18s
Test suite with py312-ubuntu, mypyc-compiled	14m 15s
Test suite with py39-ubuntu, mypyc-compiled	15m 34s
Test suite with py313-ubuntu, mypyc-compiled	14m 6s
Type check our own code (py39-ubuntu)	1m 43s
Type check our own code (py39-windows-64)	2m 16s
mypyc runtime tests with py310-ubuntu	5m 15s
mypyc runtime tests with py313-macos	6m 43s
Formatting and code style with Black + ruff	1m 58s
Test suite with py314-windows-64	26m 25s
	2h 12m 43s

Provide feedback