Revert of [heap] Better integrate handling of aborted compaction pages

src/heap/spaces-inl.h

 // Copyright 2011 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.
 
 #ifndef V8_HEAP_SPACES_INL_H_
 #define V8_HEAP_SPACES_INL_H_
 
 #include "src/heap/incremental-marking.h"
 #include "src/heap/spaces.h"
 #include "src/isolate.h"
@@ skipping 364 matching lines @@
 
 void Page::MarkEvacuationCandidate() {
   DCHECK(!IsFlagSet(NEVER_EVACUATE));
   DCHECK_NULL(old_to_old_slots_);
   DCHECK_NULL(typed_old_to_old_slots_);
   SetFlag(EVACUATION_CANDIDATE);
   reinterpret_cast<PagedSpace*>(owner())->free_list()->EvictFreeListItems(this);
 }
 
 void Page::ClearEvacuationCandidate() {
-  if (!IsFlagSet(COMPACTION_WAS_ABORTED)) {
-    DCHECK_NULL(old_to_old_slots_);
-    DCHECK_NULL(typed_old_to_old_slots_);
-  }
+  DCHECK_NULL(old_to_old_slots_);
+  DCHECK_NULL(typed_old_to_old_slots_);
   ClearFlag(EVACUATION_CANDIDATE);
   InitializeFreeListCategories();
 }
 
 MemoryChunkIterator::MemoryChunkIterator(Heap* heap, Mode mode)
     : state_(kOldSpaceState),
       mode_(mode),
       old_iterator_(heap->old_space()),
       code_iterator_(heap->code_space()),
       map_iterator_(heap->map_space()),
@@ skipping 311 matching lines @@
     other->allocation_info_.Reset(nullptr, nullptr);
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_SPACES_INL_H_