Deprecate the version of MakeWeak which takes an Isolate.

src/d8.cc

Index: src/d8.cc
diff --git a/src/d8.cc b/src/d8.cc
index a917dbdbe3a52b2641613063381fc10d6632e71a..da7445cff36af731cb9f1147661b3f42eb76ef7d 100644
--- a/src/d8.cc
+++ b/src/d8.cc
@@ -1104,7 +1104,7 @@ void Shell::ReadBuffer(const v8::FunctionCallbackInfo<v8::Value>& args) {
   }
   Handle<v8::ArrayBuffer> buffer = ArrayBuffer::New(data, length);
   v8::Persistent<v8::Value> weak_handle(isolate, buffer);
-  weak_handle.MakeWeak(isolate, data, ReadBufferWeakCallback);
+  weak_handle.MakeWeak(data, ReadBufferWeakCallback);
   weak_handle.MarkIndependent();
   isolate->AdjustAmountOfExternalAllocatedMemory(length);