- Convert all isolate flags to a bit field.

runtime/vm/service_isolate.cc

 // 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.
 
 #include "vm/service_isolate.h"
 
 #include "vm/compiler.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
@@ skipping 239 matching lines @@
 
 void ServiceIsolate::SetServicePort(Dart_Port port) {
   MonitorLocker ml(monitor_);
   port_ = port;
 }
 
 void ServiceIsolate::SetServiceIsolate(Isolate* isolate) {
   MonitorLocker ml(monitor_);
   isolate_ = isolate;
   if (isolate_ != NULL) {
-    isolate_->is_service_isolate_ = true;
+    isolate_->set_is_service_isolate(true);
     origin_ = isolate_->origin_id();
   }
 }
 
 void ServiceIsolate::SetLoadPort(Dart_Port port) {
   MonitorLocker ml(monitor_);
   load_port_ = port;
 }
 
 void ServiceIsolate::MaybeMakeServiceIsolate(Isolate* I) {
@@ skipping 252 matching lines @@
   if (result.IsReceivePort()) {
     port = ReceivePort::Cast(result).Id();
   }
   ASSERT(port != ILLEGAL_PORT);
   ServiceIsolate::SetServicePort(port);
 }
 
 void ServiceIsolate::VisitObjectPointers(ObjectPointerVisitor* visitor) {}
 
 }  // namespace dart