[stubs] Port FastNewObjectStub to TF

src/interface-descriptors.cc

Index: src/interface-descriptors.cc
diff --git a/src/interface-descriptors.cc b/src/interface-descriptors.cc
index d4faf5215b5afbbc02937dcac8112ddacc3bc88e..26b6422f6bfc1e4d75991477b86c2ffcc39e8764 100644
--- a/src/interface-descriptors.cc
+++ b/src/interface-descriptors.cc
@@ -74,6 +74,20 @@ void FastNewFunctionContextDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+void FastNewObjectDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {TargetRegister(), NewTargetRegister()};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
+const Register FastNewObjectDescriptor::TargetRegister() {
+  return kJSFunctionRegister;
+}
+
+const Register FastNewObjectDescriptor::NewTargetRegister() {
+  return kJavaScriptCallNewTargetRegister;
+}
+
 void LoadDescriptor::InitializePlatformIndependent(
     CallInterfaceDescriptorData* data) {
   // kReceiver, kName, kSlot