tests

TST: cleanup #790

Job	Run time
cygwin (3.9)	5m 28s
msvc (3.11)	2m 41s
homebrew (3.8)	2m 27s
mypy	12s
homebrew (3.11)	1m 39s
pyston (3.8)	1m 1s
test (ubuntu, 3.7)	1m 48s
test (ubuntu, 3.12)	2m 46s
test (macos, 3.7)	2m 22s
test (macos, 3.12)	2m 16s
test (windows, 3.7)	3m 27s
test (windows, 3.12)	5m 46s
test (ubuntu, pypy-3.9)	3m 46s
test (ubuntu, pypy-3.10)	5m 18s
test (ubuntu, 3.8)	1m 36s
test (ubuntu, 3.9)	2m 15s
test (ubuntu, 3.10)	1m 22s
test (ubuntu, 3.11, ~=0.63.3)	1m 40s
test (ubuntu, 3.11, ~=0.64.0)	1m 22s
test (ubuntu, 3.11, ~=1.0.0)	1m 58s
test (ubuntu, 3.11, ~=1.1.0)	1m 21s
test (ubuntu, 3.12, @git+https://github.com/mesonbuild/meson.git)	2m 48s
test (windows, 3.12, @git+https://github.com/mesonbuild/meson.git)	4m 11s
	59m 30s

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