Reland "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 7abfa99de62aaef2484d5b9604781148b2ad982f..ee202c2e997216fcf68d285b3450bbfbc4ac60f7 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -25977,3 +25977,14 @@ THREADED_TEST(ImmutableProtoWithParent) {
             ->Equals(context.local(), original_proto)
             .FromJust());
 }
+
+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());
+}