Add explicit integer type-casts to make WIN64 build without errors.

test/cctest/test-heap.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 
 #include <stdlib.h>
 
 #include "v8.h"
 
 #include "execution.h"
 #include "factory.h"
 #include "macro-assembler.h"
 #include "global-handles.h"
@@ skipping 161 matching lines @@
   // Check ToString for Numbers
   CheckNumber(1.1, "1.1");
 
   CheckFindCodeObject();
 }
 
 
 TEST(Tagging) {
   InitializeVM();
   int request = 24;
-  ASSERT_EQ(request, OBJECT_SIZE_ALIGN(request));
+  ASSERT_EQ(static_cast<intptr_t>(request), OBJECT_SIZE_ALIGN(request));
   CHECK(Smi::FromInt(42)->IsSmi());
   CHECK(Failure::RetryAfterGC(request, NEW_SPACE)->IsFailure());
   CHECK_EQ(request, Failure::RetryAfterGC(request, NEW_SPACE)->requested());
   CHECK_EQ(NEW_SPACE,
            Failure::RetryAfterGC(request, NEW_SPACE)->allocation_space());
   CHECK_EQ(OLD_POINTER_SPACE,
            Failure::RetryAfterGC(request,
                                  OLD_POINTER_SPACE)->allocation_space());
   CHECK(Failure::Exception()->IsFailure());
   CHECK(Smi::FromInt(Smi::kMinValue)->IsSmi());
@@ skipping 590 matching lines @@
   objs[next_objs_index++] =
       Factory::NewStringFromAscii(CStrVector(str), TENURED);
   delete[] str;
 
   // Add a Map object to look for.
   objs[next_objs_index++] = Handle<Map>(HeapObject::cast(*objs[0])->map());
 
   CHECK_EQ(objs_count, next_objs_index);
   CHECK_EQ(objs_count, ObjectsFoundInHeap(objs, objs_count));
 }