Don't leak contexts in Object.observe

src/bootstrapper.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "bootstrapper.h"
 
 #include "accessors.h"
 #include "isolate-inl.h"
 #include "natives.h"
 #include "snapshot.h"
@@ skipping 1538 matching lines @@
   INSTALL_NATIVE(JSFunction, "GetStackTraceLine", get_stack_trace_line_fun);
   INSTALL_NATIVE(JSObject, "functionCache", function_cache);
   INSTALL_NATIVE(JSFunction, "ToCompletePropertyDescriptor",
                  to_complete_property_descriptor);
   INSTALL_NATIVE(JSFunction, "NotifyChange", observers_notify_change);
   INSTALL_NATIVE(JSFunction, "EnqueueSpliceRecord", observers_enqueue_splice);
   INSTALL_NATIVE(JSFunction, "BeginPerformSplice",
                  observers_begin_perform_splice);
   INSTALL_NATIVE(JSFunction, "EndPerformSplice",
                  observers_end_perform_splice);
+  INSTALL_NATIVE(JSFunction, "NativeObjectObserve",
+                 native_object_observe);
+  INSTALL_NATIVE(JSFunction, "NativeObjectGetNotifier",
+                 native_object_get_notifier);
+  INSTALL_NATIVE(JSFunction, "NativeObjectNotifierPerformChange",
+                 native_object_notifier_perform_change);
 }
 
 
 void Genesis::InstallExperimentalNativeFunctions() {
   INSTALL_NATIVE(JSFunction, "RunMicrotasks", run_microtasks);
   INSTALL_NATIVE(JSFunction, "EnqueueMicrotask", enqueue_microtask);
 
   if (FLAG_harmony_promises) {
     INSTALL_NATIVE(JSFunction, "IsPromise", is_promise);
     INSTALL_NATIVE(JSFunction, "PromiseCreate", promise_create);
@@ skipping 1122 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal