Add Debugger.inspect. 1976 here we come!

runtime/observatory/tests/service/debugger_inspect_test.dart

+// Copyright (c) 2015, 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.
+// VMOptions=--compile-all --error_on_bad_type --error_on_bad_override
+
+import 'package:observatory/service_io.dart';
+import 'package:unittest/unittest.dart';
+import 'test_helper.dart';
+import 'dart:async';
+import 'dart:developer';
+
+class Point {
+  int x, y;
+  Point(this.x, this.y);
+}
+
+void testeeDo() {
+  Debugger.inspect(new Point(3, 4));
+}
+
+var tests = [
+
+(Isolate isolate) async {
+  Completer completer = new Completer();
+  var subscription;
+  subscription = isolate.vm.events.stream.listen((ServiceEvent event) {
+    print(event);
+    if (event.eventType == ServiceEvent.kInspect) {
+      expect((event.inspectee as Instance).clazz.name, equals('Point'));
+
+      subscription.cancel();
+      completer.complete();
+    }
+  });
+
+  // Start listening for events first.
+  await isolate.eval(isolate.rootLib, 'testeeDo();');
+  return completer.future;
+},
+
+];
+
+main(args) => runIsolateTests(args, tests);