When rethrowing an exception, print the stack trace of its original site instead of rethrow site.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 17e66d704ccf86c2b2b3c663b661c40f093dfd84..97954cdcecf66b7a8a4d4e2746c2e8707779c67f 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -1638,7 +1638,7 @@ class JSObject: public JSReceiver {
                                           Handle<String> key,
                                           Handle<Object> value);
   // Returns a failure if a GC is required.
-  MaybeObject* SetHiddenProperty(String* key, Object* value);
+  MUST_USE_RESULT MaybeObject* SetHiddenProperty(String* key, Object* value);
   // Gets the value of a hidden property with the given key. Returns undefined
   // if the property doesn't exist (or if called on a detached proxy),
   // otherwise returns the value set for the key.