Handlify JSObject::SetPrototype method.

test/cctest/test-heap.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 1954 matching lines @@
     prototype = factory->NewJSArray(32 * KB, FAST_HOLEY_ELEMENTS, TENURED);
   }
 
   // Add a prototype on an evacuation candidate and verify that transition
   // clearing correctly records slots in prototype transition array.
   i::FLAG_always_compact = true;
   Handle<Map> map(baseObject->map());
   CHECK(!space->LastPage()->Contains(
       map->GetPrototypeTransitions()->address()));
   CHECK(space->LastPage()->Contains(prototype->address()));
-  baseObject->SetPrototype(*prototype, false)->ToObjectChecked();
-  CHECK(map->GetPrototypeTransition(*prototype)->IsMap());
+  JSObject::SetPrototype(baseObject, prototype, false);
+  CHECK(Map::GetPrototypeTransition(map, prototype)->IsMap());
   HEAP->CollectAllGarbage(Heap::kNoGCFlags);
-  CHECK(map->GetPrototypeTransition(*prototype)->IsMap());
+  CHECK(Map::GetPrototypeTransition(map, prototype)->IsMap());
 }
 
 
 TEST(ResetSharedFunctionInfoCountersDuringIncrementalMarking) {
   i::FLAG_stress_compaction = false;
   i::FLAG_allow_natives_syntax = true;
 #ifdef VERIFY_HEAP
   i::FLAG_verify_heap = true;
 #endif
 
@@ skipping 1324 matching lines @@
              "    var a = new Array(n);"
              "    for (var i = 0; i < n; i += 100) a[i] = i;"
              "};"
              "f(10 * 1024 * 1024);");
   IncrementalMarking* marking = HEAP->incremental_marking();
   if (marking->IsStopped()) marking->Start();
   // This big step should be sufficient to mark the whole array.
   marking->Step(100 * MB, IncrementalMarking::NO_GC_VIA_STACK_GUARD);
   ASSERT(marking->IsComplete());
 }