Stores and compound assignments for named super properties.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index bea27922c73d72b37b57e46e0f242c623e903f63..0ff59732be3b2de19613dd9dd43daf802b86bdcb 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -2807,7 +2807,8 @@ MaybeHandle<Object> Object::SetProperty(Handle<Object> object,
 MaybeHandle<Object> Object::SetProperty(LookupIterator* it,
                                         Handle<Object> value,
                                         StrictMode strict_mode,
-                                        StoreFromKeyed store_mode) {
+                                        StoreFromKeyed store_mode,
+                                        StorePropertyMode data_store_mode) {
   // Make sure that the top context does not change when doing callbacks or
   // interceptor calls.
   AssertNoContextChange ncc(it->isolate());
@@ -2902,6 +2903,16 @@ MaybeHandle<Object> Object::SetProperty(LookupIterator* it,
                     Object);
   }
 
+  if (data_store_mode == SUPER_PROPERTY) {
+    if (strict_mode == STRICT) {
+      Handle<Object> args[1] = {it->name()};
+      THROW_NEW_ERROR(it->isolate(),
+                      NewReferenceError("not_defined", HandleVector(args, 1)),
+                      Object);
+    }
+    return value;
+  }
+
   return AddDataProperty(it, value, NONE, strict_mode, store_mode);
 }