Move DebugInfo test into its own sync case

Author: José Valim

lib/elixir/test/elixir/protocol_test.exs

@@ -160,21 +160,6 @@ defmodule ProtocolTest do
     assert WithAny.__info__(:attributes)[:protocol] == [fallback_to_any: true]
   end
 
-  test "protocols always keep debug_info" do
-    Code.compiler_options(debug_info: false)
-
-    {:module, _, binary, _} =
-      defprotocol DebugInfoProto do
-      end
-
-    assert {:ok, {DebugInfoProto, [debug_info: debug_info]}} =
-             :beam_lib.chunks(binary, [:debug_info])
-
-    assert {:debug_info_v1, :elixir_erl, {:elixir_v1, _, _}} = debug_info
-  after
-    Code.compiler_options(debug_info: true)
-  end
-
   test "defimpl" do
     module = Module.concat(Sample, ImplStruct)
     assert module.__impl__(:for) == ImplStruct
@@ -275,6 +260,25 @@ defmodule ProtocolTest do
   end
 end
 
+defmodule Protocol.DebugInfoTest do
+  use ExUnit.Case
+
+  test "protocols always keep debug_info" do
+    Code.compiler_options(debug_info: false)
+
+    {:module, _, binary, _} =
+      defprotocol DebugInfoProto do
+      end
+
+    assert {:ok, {DebugInfoProto, [debug_info: debug_info]}} =
+             :beam_lib.chunks(binary, [:debug_info])
+
+    assert {:debug_info_v1, :elixir_erl, {:elixir_v1, _, _}} = debug_info
+  after
+    Code.compiler_options(debug_info: true)
+  end
+end
+
 path = Path.expand("../ebin", __DIR__)
 File.mkdir_p!(path)