Tests

[mypyc] Speed up ord(str[n]) by inlining #20106

Job	Run time
Test mypyc suite with 32-bit Python	9m 40s
Test suite with py314-windows-64	17m 58s
Test suite with py311-ubuntu	9m 8s
Test suite with py314t-ubuntu, mypyc-compiled	16m 50s
Test suite with py310-ubuntu, mypyc-compiled	15m 32s
mypyc runtime tests with py313-macos	7m 50s
Test suite with py312-ubuntu	9m 52s
Test suite with py313-ubuntu, mypyc-compiled	14m 57s
Parallel tests with py314-ubuntu, interpreted	18m 7s
Parallel tests with py314-ubuntu, mypyc-compiled	18m 6s
Test suite with py314-ubuntu, mypyc-compiled	15m 28s
Type check our own code (py310-ubuntu)	1m 42s
Formatting and code style with Black + ruff	1m 57s
mypyc runtime tests with py310-ubuntu	5m 27s
Type check our own code (py310-windows-64)	2m 27s
	2h 45m 1s

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