Remove all stuff marked as V8_DEPRECATED.

src/allocation-tracker.h

Index: src/allocation-tracker.h
diff --git a/src/allocation-tracker.h b/src/allocation-tracker.h
index 6844716a148f6217045a90632cf42ff1f7c499d8..1a5dc9e123c4ffe39f6c4bbdca5b3f32723a8540 100644
--- a/src/allocation-tracker.h
+++ b/src/allocation-tracker.h
@@ -112,9 +112,9 @@ class AllocationTracker {
     void Resolve();
 
    private:
-    static void HandleWeakScript(v8::Isolate* isolate,
-                                 v8::Persistent<v8::Value>* obj,
-                                 void* data);
+    static void HandleWeakScript(
+        const v8::WeakCallbackData<v8::Value, void>& data);
+
     Handle<Script> script_;
     int start_position_;
     FunctionInfo* info_;