Tests

[mypyc] feat: add ascii format fast path #20298

Job	Run time
Test suite with py314-windows-64	27m 40s
mypyc runtime tests with py310-ubuntu	5m 22s
Parallel tests with py314-ubuntu, mypyc-compiled	29m 16s
mypyc runtime tests with py313-macos	4m 45s
Test mypyc suite with 32-bit Python	9m 45s
Test suite with py311-ubuntu	10m 1s
Test suite with py314t-ubuntu, mypyc-compiled	17m 30s
Test suite with py312-ubuntu	9m 44s
Type check our own code (py310-windows-64)	3m 12s
Formatting and code style with Black + ruff	1m 52s
Test suite with py313-ubuntu, mypyc-compiled	15m 12s
Test suite with py310-ubuntu, mypyc-compiled	15m 54s
Type check our own code (py310-ubuntu)	1m 42s
Test suite with py314-ubuntu, mypyc-compiled	14m 48s
Parallel tests with py314-ubuntu, interpreted	23m 13s
	3h 9m 56s

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