Run dartfmt on all files under runtime.

runtime/observatory/tests/service/evaluate_in_async_star_activation_test.dart

 // 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.
 
 import 'dart:developer';
 import 'package:observatory/service_io.dart';
 import 'package:unittest/unittest.dart';
 import 'service_test_common.dart';
 import 'test_helper.dart';
 
 generator() async* {
   var x = 3;
   var y = 4;
   debugger();
   yield y;
   var z = x + y;
   debugger();
   yield z;
 }
 
 testFunction() async {
   await for (var ignored in generator());
 }
 
 var tests = [
+  hasStoppedAtBreakpoint,
+  (Isolate isolate) async {
+    // Make sure we are in the right place.
+    var stack = await isolate.getStack();
+    var topFrame = 0;
+    expect(stack.type, equals('Stack'));
+    expect(await stack['frames'][topFrame].location.getLine(), 15);
 
-hasStoppedAtBreakpoint,
+    var result = await isolate.evalFrame(topFrame, "x");
+    print(result);
+    expect(result.valueAsString, equals("3"));
+  },
+  resumeIsolate,
+  hasStoppedAtBreakpoint,
+  (Isolate isolate) async {
+    // Make sure we are in the right place.
+    var stack = await isolate.getStack();
+    var topFrame = 0;
+    expect(stack.type, equals('Stack'));
+    expect(await stack['frames'][topFrame].location.getLine(), 18);
 
-(Isolate isolate) async {
-  // Make sure we are in the right place.
-  var stack = await isolate.getStack();
-  var topFrame = 0;
-  expect(stack.type, equals('Stack'));
-  expect(await stack['frames'][topFrame].location.getLine(), 15);
-
-  var result = await isolate.evalFrame(topFrame, "x");
-  print(result);
-  expect(result.valueAsString, equals("3"));
-},
-
-resumeIsolate,
-
-hasStoppedAtBreakpoint,
-
-(Isolate isolate) async {
-  // Make sure we are in the right place.
-  var stack = await isolate.getStack();
-  var topFrame = 0;
-  expect(stack.type, equals('Stack'));
-  expect(await stack['frames'][topFrame].location.getLine(), 18);
-
-  var result = await isolate.evalFrame(topFrame, "z");
-  print(result);
-  expect(result.valueAsString, equals("7"));
-},
-
-resumeIsolate,
-
+    var result = await isolate.evalFrame(topFrame, "z");
+    print(result);
+    expect(result.valueAsString, equals("7"));
+  },
+  resumeIsolate,
 ];
 
 main(args) => runIsolateTests(args, tests, testeeConcurrent: testFunction);