Add initial coarse reduction pass for reducing alternatives #4870

Job	Run time
test-pyodide	9m 14s
test-win (3.11, nocover)	7m 49s
test-osx (check-py310-cover)	5m 22s
test-win (3.11, cover+rest)	7m 6s
test-osx (check-py310-nocover)	3m 20s
test (check-whole-repo-tests)	3m 45s
test-win (3.11, x86, nocover)	8m 38s
test-osx (check-py310-niche)	1m 55s
test (lint)	46s
test-win (3.11, x86, cover+rest)	10m 52s
test-osx (check-py311-cover)	4m 50s
test (check-format)	42s
test (check-coverage)	9m 39s
test (check-conjecture-coverage)	4m 52s
test (check-py39-cover)	7m 59s
test (check-pypy39-cover)	4m 54s
test (check-py310-cover)	7m 19s
test (check-py310-nocover)	7m 20s
test (check-py310-niche)	4m 2s
test (check-pypy310-cover)	4m 57s
test (check-py311-cover)	6m 45s
test (check-py311-nocover)	6m 39s
test (check-py311-niche)	5m 47s
test (check-py312-cover)	8m 0s
test (check-py312-nocover)	7m 39s
test (check-py312-niche)	4m 44s
test (check-py313-cover)	8m 4s
test (check-py313-nocover)	7m 19s
test (check-py313-niche)	11m 0s
test (check-quality)	1m 26s
test (check-py39-nose)	1m 47s
test (check-py39-pytest46)	2m 55s
test (check-py39-pytest54)	2m 45s
test (check-pytest62)	2m 26s
test (check-django51)	1m 24s
test (check-django50)	1m 31s
test (check-django42)	1m 31s
test (check-pandas22)	1m 9s
test (check-pandas21)	1m 13s
test (check-pandas20)	1m 7s
test (check-pandas15)	1m 17s
test (check-pandas14)	1m 7s
test (check-pandas13)	1m 11s
test (check-py39-pandas12)	1m 14s
test (check-py39-pandas11)	1m 20s
test (check-py39-oldestnumpy)	1m 46s
test (check-numpy-nightly)	8m 8s
deploy	0s
	3h 36m 35s

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