[Interpreter] Support for operator new.

test/cctest/interpreter/test-interpreter.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/v8.h"
 
 #include "src/execution.h"
 #include "src/handles.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/interpreter.h"
@@ skipping 1619 matching lines @@
       "function " + InterpreterTester::function_name() + "(a) {\n"
       "  return (function(x){ return x + 2; })(a);\n"
       "}");
   InterpreterTester tester(handles.main_isolate(), source.c_str());
   auto callable = tester.GetCallable<Handle<Object>>();
 
   Handle<i::Object> return_val = callable(
       Handle<Smi>(Smi::FromInt(3), handles.main_isolate())).ToHandleChecked();
   CHECK_EQ(Smi::cast(*return_val), Smi::FromInt(5));
 }
+
+
+TEST(InterpreterConstruct) {
+  HandleAndZoneScope handles;
+
+  std::string source(
+      "function counter() { this.count = 0; }\n"
+      "function " +
+      InterpreterTester::function_name() +
+      "() {\n"
+      "  var c = new counter();\n"
+      "  return c.count;\n"
+      "}");
+  InterpreterTester tester(handles.main_isolate(), source.c_str());
+  auto callable = tester.GetCallable<>();
+
+  Handle<Object> return_val = callable().ToHandleChecked();
+  CHECK_EQ(Smi::cast(*return_val), Smi::FromInt(0));
+}
+
+
+TEST(InterpreterConstructWithArgument) {
+  HandleAndZoneScope handles;
+
+  std::string source(
+      "function counter(arg0) { this.count = 17; this.x = arg0; }\n"
+      "function " +
+      InterpreterTester::function_name() +
+      "() {\n"
+      "  var c = new counter(3);\n"
+      "  return c.x;\n"
+      "}");
+  InterpreterTester tester(handles.main_isolate(), source.c_str());
+  auto callable = tester.GetCallable<>();
+
+  Handle<Object> return_val = callable().ToHandleChecked();
+  CHECK_EQ(Smi::cast(*return_val), Smi::FromInt(3));
+}
+
+
+TEST(InterpreterConstructWithArguments) {
+  HandleAndZoneScope handles;
+
+  std::string source(
+      "function counter(arg0, arg1) { this.count = 17; this.x = arg0; this.y = "

[rmcilroy, 2015/10/14 10:18:35]

nit - newline after '{'

[oth, 2015/10/14 16:02:19]

Done.

+      "arg1; }\n"
+      "function " +
+      InterpreterTester::function_name() +
+      "() {\n"
+      "  var c = new counter(3, 4);\n"
+      "  return c.y;\n"
+      "}");
+  InterpreterTester tester(handles.main_isolate(), source.c_str());
+  auto callable = tester.GetCallable<>();
+
+  Handle<Object> return_val = callable().ToHandleChecked();
+  CHECK_EQ(Smi::cast(*return_val), Smi::FromInt(4));
+}