tests

Editable installs improvements #2303

Job	Run time
mypy	12s
cygwin (3.9)	1m 25s
msvc (3.11)	1m 25s
homebrew (3.8)	1m 38s
pyston (3.8)	1m 13s
homebrew (3.11)	1m 37s
test (ubuntu, 3.7)	1m 47s
test (ubuntu, 3.12)	2m 5s
test (macos, 3.7)	1s
test (macos, 3.12)	1m 40s
test (windows, 3.7)	1s
test (windows, 3.12)	30s
test (ubuntu, pypy-3.9)	44s
test (ubuntu, pypy-3.10)	1m 36s
test (ubuntu, 3.8)	2m 3s
test (ubuntu, 3.9)	1m 30s
test (ubuntu, 3.10)	1m 29s
test (ubuntu, 3.11, ~=0.63.3)	1m 34s
test (ubuntu, 3.11, ~=0.64.0)	1m 27s
test (ubuntu, 3.11, ~=1.0.0)	1m 25s
test (ubuntu, 3.11, ~=1.1.0)	2m 0s
test (ubuntu, 3.12, ~=1.2.3)	1m 59s
test (ubuntu, 3.12, @git+https://github.com/mesonbuild/meson.git)	1m 40s
test (windows, 3.12, @git+https://github.com/mesonbuild/meson.git)	1s
	31m 2s

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