Fix Windows 64 bit compile.

test/cctest/test-api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 10853 matching lines @@
   env.Dispose();
 }
 
 
 THREADED_TEST(ExternalAllocatedMemory) {
   v8::HandleScope outer;
   v8::Persistent<Context> env(Context::New());
   CHECK(!env.IsEmpty());
   const intptr_t kSize = 1024*1024;
   CHECK_EQ(v8::V8::AdjustAmountOfExternalAllocatedMemory(kSize), kSize);
-  CHECK_EQ(v8::V8::AdjustAmountOfExternalAllocatedMemory(-kSize), 0l);
+  CHECK_EQ(v8::V8::AdjustAmountOfExternalAllocatedMemory(-kSize),
+           static_cast<intptr_t>(0));
 }
 
 
 THREADED_TEST(DisposeEnteredContext) {
   v8::HandleScope scope;
   LocalContext outer;
   { v8::Persistent<v8::Context> inner = v8::Context::New();
     inner->Enter();
     inner.Dispose();
     inner.Clear();
@@ skipping 5509 matching lines @@
 
 TEST(SecondaryStubCache) {
   StubCacheHelper(true);
 }
 
 
 TEST(PrimaryStubCache) {
   StubCacheHelper(false);
 }