first step to remove unsafe handles

test/cctest/test-heap-profiler.cc

Index: test/cctest/test-heap-profiler.cc
diff --git a/test/cctest/test-heap-profiler.cc b/test/cctest/test-heap-profiler.cc
index 59e7b8f25498896a962ae736a1af8a335cdc21ba..2464db70739415a688affd15847e1a7a4bb85cf8 100644
--- a/test/cctest/test-heap-profiler.cc
+++ b/test/cctest/test-heap-profiler.cc
@@ -29,6 +29,9 @@
 
 #include <ctype.h>
 
+// TODO(dcarney): remove
+#define V8_ALLOW_ACCESS_TO_PERSISTENT_IMPLICIT
+
 #include "v8.h"
 
 #include "cctest.h"
@@ -1195,7 +1198,8 @@ class GraphWithImplicitRefs {
     for (int i = 0; i < kObjectsCount; i++) {
       objects_[i] = v8::Persistent<v8::Object>::New(isolate, v8::Object::New());
     }
-    (*env)->Global()->Set(v8_str("root_object"), objects_[0]);
+    (*env)->Global()->Set(v8_str("root_object"),
+                          v8::Local<v8::Value>::New(isolate, objects_[0]));
   }
   ~GraphWithImplicitRefs() {
     instance_ = NULL;