Always allocate symbols in old space.

src/heap.cc

 // Copyright 2012 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 5410 matching lines @@
   { MaybeObject* maybe_result = AllocateFixedArray(length, pretenure);
     if (!maybe_result->ToObject(&result)) return maybe_result;
   }
   reinterpret_cast<HeapObject*>(result)->set_map_no_write_barrier(
       hash_table_map());
   ASSERT(result->IsHashTable());
   return result;
 }
 
 
-MaybeObject* Heap::AllocateSymbol(PretenureFlag pretenure) {
+MaybeObject* Heap::AllocateSymbol() {
   // Statically ensure that it is safe to allocate symbols in paged spaces.
   STATIC_ASSERT(Symbol::kSize <= Page::kNonCodeObjectAreaSize);
-  AllocationSpace space = pretenure == TENURED ? OLD_POINTER_SPACE : NEW_SPACE;
+  AllocationSpace space = OLD_POINTER_SPACE;

[rossberg, 2013/03/28 13:33:17]

Nit: just inline this now trivial definition.

 
   Object* result;
   MaybeObject* maybe = AllocateRaw(Symbol::kSize, space, OLD_POINTER_SPACE);
   if (!maybe->ToObject(&result)) return maybe;
 
   HeapObject::cast(result)->set_map_no_write_barrier(symbol_map());
 
   // Generate a random hash value.
   int hash;
   int attempts = 0;
@@ skipping 2372 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   memcpy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   memcpy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 
 } }  // namespace v8::internal