[Interpreter] Support for operator new.

src/compiler/interpreter-assembler.h

 // 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.
 
 #ifndef V8_COMPILER_INTERPRETER_ASSEMBLER_H_
 #define V8_COMPILER_INTERPRETER_ASSEMBLER_H_
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
 // Do not include anything from src/compiler here!
 #include "src/allocation.h"
@@ skipping 83 matching lines @@
 
   // Load a field from an object on the heap.
   Node* LoadObjectField(Node* object, int offset);
 
   // Load |slot_index| from |context|.
   Node* LoadContextSlot(Node* context, Node* slot_index);
 
   // Load the TypeFeedbackVector for the current function.
   Node* LoadTypeFeedbackVector();
 
-  // Call JSFunction or Callable |function| with |arg_count| (not including
-  // receiver) and the first argument located at |first_arg|.
+  // Call constructor |constructor| with |arg_count| arguments (not
+  // including receiver) and the first argument located at
+  // |first_arg|. The |original_constructor| is the same as the
+  // |constructor| for the new keyword, but differs for the super
+  // keyword.
+  Node* CallConstruct(Node* original_constructor, Node* constructor,
+                      Node* first_arg, Node* arg_count);
+
+  // Call JSFunction or Callable |function| with |arg_count|
+  // arguments (not including receiver) and the first argument
+  // located at |first_arg|.
   Node* CallJS(Node* function, Node* first_arg, Node* arg_count);
 
   // Call an IC code stub.
   Node* CallIC(CallInterfaceDescriptor descriptor, Node* target, Node* arg1,
                Node* arg2, Node* arg3);
   Node* CallIC(CallInterfaceDescriptor descriptor, Node* target, Node* arg1,
                Node* arg2, Node* arg3, Node* arg4);
   Node* CallIC(CallInterfaceDescriptor descriptor, Node* target, Node* arg1,
                Node* arg2, Node* arg3, Node* arg4, Node* arg5);
 
@@ skipping 77 matching lines @@
   bool code_generated_;
 
   DISALLOW_COPY_AND_ASSIGN(InterpreterAssembler);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INTERPRETER_ASSEMBLER_H_