[Interpreter] Support for operator new.

src/compiler/interpreter-assembler.cc

Index: src/compiler/interpreter-assembler.cc
diff --git a/src/compiler/interpreter-assembler.cc b/src/compiler/interpreter-assembler.cc
index 0ba6176f6b8d4be91dc110e193e56e9ad46160c7..47c24a4ceec7050496f68d98eb4c37461500ceea 100644
--- a/src/compiler/interpreter-assembler.cc
+++ b/src/compiler/interpreter-assembler.cc
@@ -317,6 +317,26 @@ Node* InterpreterAssembler::LoadTypeFeedbackVector() {
 }
 
 
+Node* InterpreterAssembler::CallConstruct(Node* original_constructor,
+                                          Node* constructor, Node* first_arg,
+                                          Node* arg_count) {
+  Callable callable = CodeFactory::InterpreterPushArgsAndConstruct(isolate());
+  CallDescriptor* descriptor = Linkage::GetStubCallDescriptor(
+      isolate(), zone(), callable.descriptor(), 0, CallDescriptor::kNoFlags);
+
+  Node* code_target = HeapConstant(callable.code());
+
+  Node** args = zone()->NewArray<Node*>(5);
+  args[0] = arg_count;
+  args[1] = original_constructor;
+  args[2] = constructor;
+  args[3] = first_arg;
+  args[4] = GetContext();
+
+  return CallN(descriptor, code_target, args);
+}
+
+
 Node* InterpreterAssembler::CallN(CallDescriptor* descriptor, Node* code_target,
                                   Node** args) {
   Node* stack_pointer_before_call = nullptr;