Tests

[mypyc] feat: ForMap generator helper for `builtins.map` #18689

Job	Run time
Test mypyc suite with 32-bit Python	6m 55s
Test suite with py310-ubuntu	10m 20s
Test suite with py311-ubuntu	7m 51s
Test suite with py39-ubuntu, mypyc-compiled	1m 14s
Test suite with py313-windows-64	20m 55s
Test suite with py313-ubuntu, mypyc-compiled	1m 0s
mypyc runtime tests with py39-macos	3m 49s
Type check our own code (py39-ubuntu)	1m 32s
Type check our own code (py39-windows-64)	1m 59s
Formatting and code style with Black + ruff	2m 2s
Test suite with py314-dev-ubuntu	3m 42s
Test suite with py312-ubuntu, mypyc-compiled	58s
	1h 2m 17s

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