Tests

Fix crash for empty Annotated type application (#21503) #22346

Job	Run time
Test mypyc suite with 32-bit Python	10m 25s
Test suite with py314t-ubuntu, mypyc-compiled	17m 46s
mypyc runtime tests with py313-macos	5m 28s
Test suite with py312-ubuntu	10m 1s
Test suite with py314-windows-64	31m 17s
Test suite with py310-ubuntu, mypyc-compiled	17m 3s
Parallel tests with py314-ubuntu, mypyc-compiled	27m 51s
Test suite with py311-ubuntu	9m 46s
Formatting and code style with Black + ruff	1m 46s
Test suite with py314-ubuntu, mypyc-compiled	15m 57s
Parallel tests with py314-windows-64, interpreted	10m 20s
Test suite with py313-ubuntu, mypyc-compiled	16m 5s
Parallel tests with py314-ubuntu, interpreted	25m 43s
Test suite with py315-ubuntu, mypyc-compiled	15m 32s
mypyc runtime tests with py310-ubuntu	7m 3s
Type check our own code (py310-windows-64)	1m 55s
Type check our own code (py310-ubuntu)	1m 2s
	3h 45m 0s

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