Made Isolate a mandatory parameter for everything Handle-related.

test/cctest/test-accessors.cc

Index: test/cctest/test-accessors.cc
diff --git a/test/cctest/test-accessors.cc b/test/cctest/test-accessors.cc
index 72f598b4bdb1beb68d75c0e57a7a8f7007594e62..0ff747c57dae1d0a77039f5a36adbadb5ecfcb09 100644
--- a/test/cctest/test-accessors.cc
+++ b/test/cctest/test-accessors.cc
@@ -225,7 +225,8 @@ THREADED_TEST(HandleScopePop) {
   LocalContext context;
   v8::Handle<v8::Object> inst = obj->NewInstance();
   context->Global()->Set(v8::String::New("obj"), inst);
-  int count_before = i::HandleScope::NumberOfHandles();
+  i::Isolate* isolate = i::Isolate::Current();
+  int count_before = i::HandleScope::NumberOfHandles(isolate);
   {
     v8::HandleScope scope;
     CompileRun(
@@ -234,7 +235,7 @@ THREADED_TEST(HandleScopePop) {
         "  obj.many;"
         "}");
   }
-  int count_after = i::HandleScope::NumberOfHandles();
+  int count_after = i::HandleScope::NumberOfHandles(isolate);
   CHECK_EQ(count_before, count_after);
 }