Run dartfmt on all files under runtime.

runtime/observatory/tests/service/smart_next_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=--error_on_bad_type --error_on_bad_override
 
 import 'package:observatory/models.dart' as M;
 import 'package:observatory/service_io.dart';
 import 'test_helper.dart';
 import 'dart:async';
 import 'dart:developer';
 import 'service_test_common.dart';
 
 const int LINE_A = 20;
 
-foo() async { }
-bar() { }
+foo() async {}
+bar() {}
 
 doAsync(stop) async {
   if (stop) debugger();
   await foo(); // Line A.
-  bar();       // Line A + 1.
-  bar();       // Line A + 2.
+  bar(); // Line A + 1.
+  bar(); // Line A + 2.
   await foo(); // Line A + 3.
   await foo(); // Line A + 4.
-  bar();       // Line A + 5.
+  bar(); // Line A + 5.
   return null;
 }
 
 testMain() {
   // With two runs of doAsync floating around, async step should only cause
   // us to stop in the run we started in.
   doAsync(false);
   doAsync(true);
 }
 
@@ skipping 16 matching lines @@
   if (M.isAtAsyncSuspension(isolate.pauseEvent)) {
     print("next-async");
     return asyncStepOver(isolate);
   } else {
     print("next-sync");
     return stepOverAwaitingResume(isolate);
   }
 }
 
 var tests = [
-             hasStoppedAtBreakpoint, stoppedAtLine(LINE_A), // foo()
+  hasStoppedAtBreakpoint, stoppedAtLine(LINE_A), // foo()
   smartNext, hasStoppedAtBreakpoint, stoppedAtLine(LINE_A), // await
   smartNext, hasStoppedAtBreakpoint, stoppedAtLine(LINE_A + 1), // bar()
   smartNext, hasStoppedAtBreakpoint, stoppedAtLine(LINE_A + 2), // bar()
   smartNext, hasStoppedAtBreakpoint, stoppedAtLine(LINE_A + 3), // foo()
   smartNext, hasStoppedAtBreakpoint, stoppedAtLine(LINE_A + 3), // await
   smartNext, hasStoppedAtBreakpoint, stoppedAtLine(LINE_A + 4), // foo()
   smartNext, hasStoppedAtBreakpoint, stoppedAtLine(LINE_A + 4), // await
   smartNext, hasStoppedAtBreakpoint, stoppedAtLine(LINE_A + 5), // bar()
   resumeIsolate,
 ];
 
 main(args) => runIsolateTests(args, tests, testeeConcurrent: testMain);