Move reusable handles from isolate to thread.

runtime/vm/service.cc

 // Copyright (c) 2013, 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.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/globals.h"
 
@@ skipping 1841 matching lines @@
 class GetInstancesVisitor : public ObjectGraph::Visitor {
  public:
   GetInstancesVisitor(const Class& cls, const Array& storage)
       : cls_(cls), storage_(storage), count_(0) {}
 
   virtual Direction VisitObject(ObjectGraph::StackIterator* it) {
     RawObject* raw_obj = it->Get();
     if (raw_obj->IsFreeListElement()) {
       return kProceed;
     }
-    Isolate* isolate = Isolate::Current();
-    REUSABLE_OBJECT_HANDLESCOPE(isolate);
-    Object& obj = isolate->ObjectHandle();
+    Thread* thread = Thread::Current();
+    REUSABLE_OBJECT_HANDLESCOPE(thread);
+    Object& obj = thread->ObjectHandle();
     obj = raw_obj;
     if (obj.GetClassId() == cls_.id()) {
       if (!storage_.IsNull() && count_ < storage_.Length()) {
         storage_.SetAt(count_, obj);
       }
       ++count_;
     }
     return kProceed;
   }
 
@@ skipping 1405 matching lines @@
     ServiceMethodDescriptor& method = service_methods_[i];
     if (strcmp(method_name, method.name) == 0) {
       return &method;
     }
   }
   return NULL;
 }
 
 
 }  // namespace dart