register ex_unit tests as defs #452

Job	Run time
static analysis (Elixir 1.15.x \| Erlang/OTP 26.x)	57s
mix test windows (Elixir 1.13.x \| Erlang/OTP 22.x)	1m 20s
mix test windows (Elixir 1.13.x \| Erlang/OTP 23.x)	1m 35s
mix test (Elixir 1.12.x \| Erlang/OTP 22.x)	39s
mix test windows (Elixir 1.13.x \| Erlang/OTP 24.x)	1m 31s
mix test (Elixir 1.12.x \| Erlang/OTP 23.x)	48s
mix test (Elixir 1.12.x \| Erlang/OTP 24.x)	40s
mix test windows (Elixir 1.13.x \| Erlang/OTP 25.x)	1m 27s
mix test (Elixir 1.13.x \| Erlang/OTP 22.x)	41s
mix test windows (Elixir 1.14.x \| Erlang/OTP 23.x)	1m 35s
mix test windows (Elixir 1.14.x \| Erlang/OTP 24.x)	1m 34s
mix test (Elixir 1.13.x \| Erlang/OTP 23.x)	50s
mix test windows (Elixir 1.14.x \| Erlang/OTP 25.x)	1m 27s
mix test (Elixir 1.13.x \| Erlang/OTP 24.x)	40s
mix test windows (Elixir 1.14.x \| Erlang/OTP 26.x)	1m 30s
mix test (Elixir 1.13.x \| Erlang/OTP 25.x)	41s
mix test windows (Elixir 1.15.x \| Erlang/OTP 24.x)	1m 33s
mix test (Elixir 1.14.x \| Erlang/OTP 23.x)	47s
mix test windows (Elixir 1.15.x \| Erlang/OTP 25.x)	1m 24s
mix test (Elixir 1.14.x \| Erlang/OTP 24.x)	41s
mix test windows (Elixir 1.15.x \| Erlang/OTP 26.x)	1m 27s
mix test (Elixir 1.14.x \| Erlang/OTP 25.x)	42s
mix test (Elixir 1.14.x \| Erlang/OTP 26.x)	42s
mix test (Elixir 1.15.x \| Erlang/OTP 24.x)	39s
mix test (Elixir 1.15.x \| Erlang/OTP 25.x)	40s
mix test (Elixir 1.15.x \| Erlang/OTP 26.x)	41s
	27m 11s

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