[Interpreter] Support for operator new.

src/interpreter/bytecode-array-builder.cc

Index: src/interpreter/bytecode-array-builder.cc
diff --git a/src/interpreter/bytecode-array-builder.cc b/src/interpreter/bytecode-array-builder.cc
index f39e8fe6ec7610e0b932cdb85d220c57b89852e0..4ed9ca7d769da3efd5a8bf9ddf1bf6256569bddc 100644
--- a/src/interpreter/bytecode-array-builder.cc
+++ b/src/interpreter/bytecode-array-builder.cc
@@ -583,6 +583,16 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::Call(Register callable,
 }
 
 
+BytecodeArrayBuilder& BytecodeArrayBuilder::New(Register constructor,
+                                                Register first_arg,
+                                                size_t arg_count) {
+  DCHECK(FitsInIdx8Operand(arg_count));
+  Output(Bytecode::kNew, constructor.ToOperand(), first_arg.ToOperand(),
+         static_cast<uint8_t>(arg_count));
+  return *this;
+}
+
+
 BytecodeArrayBuilder& BytecodeArrayBuilder::CallRuntime(
     Runtime::FunctionId function_id, Register first_arg, size_t arg_count) {
   DCHECK(FitsInIdx16Operand(function_id));