Dbg backend for debugger #1012

Job	Run time
static analysis (Elixir 1.15.x \| Erlang/OTP 25.x)	18s
mix test windows (Elixir 1.13.x \| Erlang/OTP 22.x)	7m 24s
mix test windows (Elixir 1.13.x \| Erlang/OTP 23.x)	9m 42s
mix test windows (Elixir 1.13.x \| Erlang/OTP 24.x)	5m 55s
mix test windows (Elixir 1.13.x \| Erlang/OTP 25.x)	5m 20s
mix test windows (Elixir 1.14.x \| Erlang/OTP 23.x)	7m 54s
mix test windows (Elixir 1.14.x \| Erlang/OTP 24.x)	6m 49s
mix test windows (Elixir 1.14.x \| Erlang/OTP 25.x)	5m 4s
mix test windows (Elixir 1.15.x \| Erlang/OTP 24.x)	6m 12s
mix test windows (Elixir 1.15.x \| Erlang/OTP 25.x)	5m 41s
mix test (Elixir 1.13.x \| Erlang/OTP 22.x)	5m 18s
mix test (Elixir 1.13.x \| Erlang/OTP 23.x)	6m 28s
mix test (Elixir 1.13.x \| Erlang/OTP 24.x)	4m 9s
mix test (Elixir 1.13.x \| Erlang/OTP 25.x)	3m 29s
mix test (Elixir 1.14.x \| Erlang/OTP 23.x)	6m 49s
mix test (Elixir 1.14.x \| Erlang/OTP 24.x)	4m 10s
mix test (Elixir 1.14.x \| Erlang/OTP 25.x)	1m 10s
mix test (Elixir 1.15.x \| Erlang/OTP 24.x)	4m 52s
mix test (Elixir 1.15.x \| Erlang/OTP 25.x)	4m 35s
	1h 41m 19s

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