Add API to create a "remote" instance of a given FunctionTemplate

test/cctest/test-access-checks.cc

Index: test/cctest/test-access-checks.cc
diff --git a/test/cctest/test-access-checks.cc b/test/cctest/test-access-checks.cc
index 937e875d7ed7b8426e9da03407914430d10a6cf5..59c17b89eb057decaac2bbcc23374f6d08d9a932 100644
--- a/test/cctest/test-access-checks.cc
+++ b/test/cctest/test-access-checks.cc
@@ -181,6 +181,10 @@ void CheckCrossContextAccess(v8::Isolate* isolate,
                "[\"7\",\"cross_context_int\"]");
 }
 
+void Ctor(const v8::FunctionCallbackInfo<v8::Value>& info) {
+  CHECK(info.IsConstructCall());
+}
+
 }  // namespace
 
 TEST(AccessCheckWithInterceptor) {
@@ -276,3 +280,26 @@ TEST(NewRemoteContext) {
     CheckCanRunScriptInContext(isolate, context5);
   }
 }
+
+TEST(NewRemoteInstance) {
+  v8::Isolate* isolate = CcTest::isolate();
+  v8::HandleScope scope(isolate);
+  v8::Local<v8::FunctionTemplate> tmpl =
+      v8::FunctionTemplate::New(isolate, Ctor);
+  v8::Local<v8::ObjectTemplate> instance = tmpl->InstanceTemplate();
+  instance->SetAccessCheckCallbackAndHandler(
+      AccessCheck,
+      v8::NamedPropertyHandlerConfiguration(
+          NamedGetter, NamedSetter, NamedQuery, NamedDeleter, NamedEnumerator),
+      v8::IndexedPropertyHandlerConfiguration(IndexedGetter, IndexedSetter,
+                                              IndexedQuery, IndexedDeleter,
+                                              IndexedEnumerator));
+  tmpl->SetNativeDataProperty(
+      v8_str("all_can_read"), Return42, nullptr, v8::Local<v8::Value>(),
+      v8::None, v8::Local<v8::AccessorSignature>(), v8::ALL_CAN_READ);
+
+  v8::Local<v8::Object> obj = tmpl->NewRemoteInstance().ToLocalChecked();
+
+  v8::Local<v8::Context> context = v8::Context::New(isolate);
+  CheckCrossContextAccess(isolate, context, obj);
+}