[Interpreter] Support for operator new.

src/compiler/interpreter-assembler.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/interpreter-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 299 matching lines @@
       kMachAnyTagged, RegisterFileRawPointer(),
       IntPtrConstant(InterpreterFrameConstants::kFunctionFromRegisterPointer));
   Node* shared_info =
       LoadObjectField(function, JSFunction::kSharedFunctionInfoOffset);
   Node* vector =
       LoadObjectField(shared_info, SharedFunctionInfo::kFeedbackVectorOffset);
   return vector;
 }
 
 
+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;
   if (FLAG_debug_code) {
     stack_pointer_before_call = raw_assembler_->LoadStackPointer();
   }
   Node* return_val = raw_assembler_->CallN(descriptor, code_target, args);
   if (FLAG_debug_code) {
     Node* stack_pointer_after_call = raw_assembler_->LoadStackPointer();
     AbortIfWordNotEqual(stack_pointer_before_call, stack_pointer_after_call,
@@ skipping 256 matching lines @@
   return raw_assembler_->schedule();
 }
 
 
 Zone* InterpreterAssembler::zone() { return raw_assembler_->zone(); }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8