Enable strict flags for all service tests

runtime/observatory/test/command_test.dart

Index: runtime/observatory/test/command_test.dart
diff --git a/runtime/observatory/test/command_test.dart b/runtime/observatory/test/command_test.dart
index 260684e4dd33c63fa1e5f9b1159904619115e193..a52f1a13b04d1d8b2de766c5b00f74ad69b7e640 100644
--- a/runtime/observatory/test/command_test.dart
+++ b/runtime/observatory/test/command_test.dart
@@ -1,6 +1,7 @@
 // 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 --checked
 
 import 'dart:async';
 
@@ -63,7 +64,7 @@ void testCommandComplete() {
   cmd.completeCommand('alpha').then((result) {
     expect(result, equals(['alpha ']));
   });
-                      
+
   // Extra space, no subcommands.
   cmd.completeCommand('alpha ').then((result) {
     expect(result, equals(['alpha ']));
@@ -168,7 +169,7 @@ void testCommandRunSubcommand() {
           new TestCommand(out, 'alpha', [
               new TestCommand(out, 'beta', []),
               new TestCommand(out, 'gamma', [])])]);
-      
+
   cmd.runCommand('a b').then(expectAsync((_) {
       expect(out.toString(), equals('executing beta([])\n'));
       out.clear();