Add a new weak handle callback that passes an Isolate to an embedder

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index d3b88245bb0c3aad0f750a87f51c51d987a4f49c..36eb2e1916a60a283f08e8dfb86bb89f2ec20e0b 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -2492,10 +2492,8 @@ THREADED_TEST(ApiObjectGroupsCycle) {
 
     g4s1 = Persistent<Object>::New(Object::New());
     g4s2 = Persistent<Object>::New(Object::New());
-    g4s1.MakeWeak(isolate,
-                  reinterpret_cast<void*>(&counter), &WeakPointerCallback);
-    g4s2.MakeWeak(isolate,
-                  reinterpret_cast<void*>(&counter), &WeakPointerCallback);
+    g4s1.MakeWeak(reinterpret_cast<void*>(&counter), &WeakPointerCallback);
+    g4s2.MakeWeak(reinterpret_cast<void*>(&counter), &WeakPointerCallback);
     CHECK(g4s1.IsWeak(isolate));
     CHECK(g4s2.IsWeak(isolate));
   }
@@ -5549,7 +5547,8 @@ THREADED_TEST(WeakReference) {
 }
 
 
-static void DisposeAndSetFlag(v8::Persistent<v8::Value> obj, void* data) {
+static void DisposeAndSetFlag(v8::Isolate* isolate,
+                              v8::Persistent<v8::Value> obj, void* data) {
   obj.Dispose();
   obj.Clear();
   *(reinterpret_cast<bool*>(data)) = true;
@@ -5571,8 +5570,8 @@ THREADED_TEST(IndependentWeakHandle) {
   v8::Isolate* isolate = v8::Isolate::GetCurrent();
   bool object_a_disposed = false;
   bool object_b_disposed = false;
-  object_a.MakeWeak(&object_a_disposed, &DisposeAndSetFlag);
-  object_b.MakeWeak(&object_b_disposed, &DisposeAndSetFlag);
+  object_a.MakeWeak(isolate, &object_a_disposed, &DisposeAndSetFlag);
+  object_b.MakeWeak(isolate, &object_b_disposed, &DisposeAndSetFlag);
   CHECK(!object_a.IsIndependent());
   CHECK(!object_b.IsIndependent(isolate));
   object_a.MarkIndependent();