Create a separate space for global property cells

src/heap-inl.h

 // 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 89 matching lines @@
 
 Object* Heap::NumberFromUint32(uint32_t value) {
   if ((int32_t)value >= 0 && Smi::IsValid((int32_t)value)) {
     return Smi::FromInt((int32_t)value);
   }
   // Bypass NumberFromDouble to avoid various redundant checks.
   return AllocateHeapNumber(FastUI2D(value));
 }
 
 
-Object* Heap::AllocateRawMap(int size_in_bytes) {
+Object* Heap::AllocateRawMap() {
 #ifdef DEBUG
   Counters::objs_since_last_full.Increment();
   Counters::objs_since_last_young.Increment();
 #endif
-  Object* result = map_space_->AllocateRaw(size_in_bytes);
+  Object* result = map_space_->AllocateRaw(Map::kSize);
+  if (result->IsFailure()) old_gen_exhausted_ = true;
+  return result;
+}
+
+
+Object* Heap::AllocateRawGlobalPropertyCell() {
+#ifdef DEBUG
+  Counters::objs_since_last_full.Increment();
+  Counters::objs_since_last_young.Increment();
+#endif
+  Object* result =
+      global_property_cell_space_->AllocateRaw(JSGlobalPropertyCell::kSize);
   if (result->IsFailure()) old_gen_exhausted_ = true;
   return result;
 }
 
 
 bool Heap::InNewSpace(Object* object) {
   return new_space_.Contains(object);
 }
 
 
@@ skipping 155 matching lines @@
   allocation_allowed_ = new_state;
   return old;
 }
 
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_