Create a separate space for global property cells

src/heap-inl.h

Index: src/heap-inl.h
===================================================================
--- src/heap-inl.h	(revision 2321)
+++ src/heap-inl.h	(working copy)
@@ -107,17 +107,29 @@
 }
 
 
-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);
 }