Fix numerous bugs introduced by reducing Page::kMaxHeapObjectSize.

test/cctest/test-spaces.cc

 // Copyright 2006-2008 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 150 matching lines @@
   CHECK(Heap::ConfigureHeapDefault());
   CHECK(MemoryAllocator::Setup(Heap::MaxReserved(), Heap::MaxExecutableSize()));
 
   OldSpace* s = new OldSpace(Heap::MaxOldGenerationSize(),
                              OLD_POINTER_SPACE,
                              NOT_EXECUTABLE);
   CHECK(s != NULL);
 
   CHECK(s->Setup());
 
-  while (s->Available() > 0) {
-    s->AllocateRaw(Page::kMaxHeapObjectSize)->ToObjectUnchecked();
+  while (s->Available() > Page::kMaxHeapObjectSize) {
+    s->AllocateRaw(Page::kMaxHeapObjectSize)->ToObjectChecked();
   }
 
   s->TearDown();
   delete s;
   MemoryAllocator::TearDown();
 }
 
 
 TEST(LargeObjectSpace) {
   CHECK(Heap::Setup(false));
@@ skipping 24 matching lines @@
     HeapObject::cast(obj)->set_map(faked_map);
     CHECK(lo->Available() < available);
   };
 
   CHECK(!lo->IsEmpty());
 
   CHECK(lo->AllocateRaw(lo_size)->IsFailure());
 
   Heap::TearDown();
 }