Tests

[mypyc] feat: add ascii format fast path #20286

Job	Run time
Test mypyc suite with 32-bit Python	9m 40s
Test suite with py314-windows-64	27m 18s
Test suite with py311-ubuntu	9m 30s
Type check our own code (py310-ubuntu)	1m 40s
Parallel tests with py314-ubuntu, mypyc-compiled	30m 18s
Type check our own code (py310-windows-64)	2m 33s
mypyc runtime tests with py313-macos	5m 43s
mypyc runtime tests with py310-ubuntu	5m 27s
Test suite with py310-ubuntu, mypyc-compiled	15m 29s
Test suite with py312-ubuntu	10m 14s
Test suite with py313-ubuntu, mypyc-compiled	15m 3s
Parallel tests with py314-ubuntu, interpreted	22m 41s
Formatting and code style with Black + ruff	1m 45s
Test suite with py314t-ubuntu, mypyc-compiled	17m 23s
Test suite with py314-ubuntu, mypyc-compiled	14m 50s
	3h 9m 34s

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