Centralized event streams

runtime/observatory/lib/src/mocks/objects/source_location.dart

Index: runtime/observatory/lib/src/mocks/objects/source_location.dart
diff --git a/runtime/observatory/lib/src/mocks/objects/source_location.dart b/runtime/observatory/lib/src/mocks/objects/source_location.dart
deleted file mode 100644
index 1c9c0f2eb3b01674aece405c04841ffb545be47f..0000000000000000000000000000000000000000
--- a/runtime/observatory/lib/src/mocks/objects/source_location.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-part of mocks;
-
-class SourceLocationMock implements M.SourceLocation {
-  final M.ScriptRef script;
-  final int tokenPos;
-  final int endTokenPos;
-
-  const SourceLocationMock({this.script, this.tokenPos, this.endTokenPos});
-}