Reland of "[heap] Parallel newspace evacuation, semispace copy, and compaction \o/"

src/objects.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 16026 matching lines @@
                                     ElementsKind to_kind) {
   if (!object->IsJSArray()) return;
 
   Heap* heap = object->GetHeap();
   if (!heap->InNewSpace(*object)) return;
 
   Handle<AllocationSite> site;
   {
     DisallowHeapAllocation no_allocation;
 
-    AllocationMemento* memento = heap->FindAllocationMemento(*object);
+    AllocationMemento* memento =
+        heap->FindAllocationMemento<Heap::kForRuntime>(*object);
     if (memento == NULL) return;
 
     // Walk through to the Allocation Site
     site = handle(memento->GetAllocationSite());
   }
   AllocationSite::DigestTransitionFeedback(site, to_kind);
 }
 
 
 void JSObject::TransitionElementsKind(Handle<JSObject> object,
@@ skipping 3689 matching lines @@
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 
 }  // namespace internal
 }  // namespace v8