[oilpan] Add checks to new operator

Source/heap/tests/HeapTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. 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
@@ skipping 43 matching lines @@
 public:
     int payload;
 };
 
 DEFINE_GC_TYPE_MARKER(HeapTestSuperClass);
 
 static const size_t classMagic = 0xABCDDBCA;
 
 class HeapTestSubClass : public HeapTestOtherSuperClass, public HeapTestSuperClass {
 public:
+    OVERRIDE_NEW(HeapTestSubClass)
     HeapTestSubClass() : m_magic(classMagic) { }
 
     virtual ~HeapTestSubClass()
     {
         EXPECT_EQ(classMagic, m_magic);
         ++s_destructorCalls;
         Heap::collectGarbage(); // Do a nested garbage collection to verify correct finalization order.
         EXPECT_EQ(classMagic, m_magic); // Contents should not be zapped by a nested GC.
     }
 
@@ skipping 700 matching lines @@
 {
     HeapTester::memberTest();
 }
 
 TEST(heap, WeakOnHeap)
 {
     HeapTester::weakOnHeapTest();
 }
 
 } // namespace WebCore