Optionally create internal fields on global proxy objects

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index 8142228a4a90a8430d98dfdbb0392ed327bd12cf..2f7c3060270ff826c4c280bc680b7ee4a376453c 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -25938,3 +25938,14 @@ TEST(EvalInAccessCheckedContext) {
   CHECK_EQ(42, x_value->Int32Value(context1).FromJust());
   context1->Exit();
 }
+
+TEST(InternalFieldsOnGlobalProxy) {
+  v8::Isolate* isolate = CcTest::isolate();
+  v8::HandleScope scope(isolate);
+
+  v8::Local<v8::ObjectTemplate> obj_template = v8::ObjectTemplate::New(isolate);
+
+  v8::Local<v8::Context> context = Context::New(isolate, nullptr, obj_template);
+  v8::Local<v8::Object> global = context->Global();
+  CHECK_EQ(v8::Context::kProxyInternalFieldCount, global->InternalFieldCount());
+}