Revert of Merge cellspace into old pointer space

src/heap/heap-inl.h

 // Copyright 2012 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_HEAP_INL_H_
 #define V8_HEAP_HEAP_INL_H_
 
 #include <cmath>
 
 #include "src/base/platform/platform.h"
@@ skipping 176 matching lines @@
     allocation = old_space_->AllocateRaw(size_in_bytes);
   } else if (CODE_SPACE == space) {
     if (size_in_bytes <= code_space()->AreaSize()) {
       allocation = code_space_->AllocateRaw(size_in_bytes);
     } else {
       // Large code objects are allocated in large object space.
       allocation = lo_space_->AllocateRaw(size_in_bytes, EXECUTABLE);
     }
   } else if (LO_SPACE == space) {
     allocation = lo_space_->AllocateRaw(size_in_bytes, NOT_EXECUTABLE);
+  } else if (CELL_SPACE == space) {
+    allocation = cell_space_->AllocateRaw(size_in_bytes);
   } else {
     DCHECK(MAP_SPACE == space);
     allocation = map_space_->AllocateRaw(size_in_bytes);
   }
   if (allocation.To(&object)) {
     OnAllocationEvent(object, size_in_bytes);
   } else {
     old_gen_exhausted_ = true;
   }
   return allocation;
@@ skipping 171 matching lines @@
   AllocationSpace src = chunk->owner()->identity();
   switch (src) {
     case NEW_SPACE:
       return dst == src || dst == OLD_SPACE;
     case OLD_SPACE:
       return dst == src &&
              (dst == OLD_SPACE || obj->IsFiller() || obj->IsExternalString());
     case CODE_SPACE:
       return dst == src && type == CODE_TYPE;
     case MAP_SPACE:
+    case CELL_SPACE:
     case LO_SPACE:
       return false;
   }
   UNREACHABLE();
   return false;
 }
 
 
 void Heap::CopyBlock(Address dst, Address src, int byte_size) {
   CopyWords(reinterpret_cast<Object**>(dst), reinterpret_cast<Object**>(src),
@@ skipping 280 matching lines @@
 
 void VerifySmisVisitor::VisitPointers(Object** start, Object** end) {
   for (Object** current = start; current < end; current++) {
     CHECK((*current)->IsSmi());
   }
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_HEAP_INL_H_