Do not assume that names of function expressions are context-allocated.

src/profile-generator.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 2091 matching lines @@
     int context_locals = scope_info->ContextLocalCount();
     for (int i = 0; i < context_locals; ++i) {
       String* local_name = scope_info->ContextLocalName(i);
       int idx = Context::MIN_CONTEXT_SLOTS + i;
       SetClosureReference(js_obj, entry, local_name, context->get(idx));
     }
 
     // Add function variable.
     if (scope_info->HasFunctionName()) {
       String* name = scope_info->FunctionName();
-      int idx = Context::MIN_CONTEXT_SLOTS + context_locals;
-#ifdef DEBUG
       VariableMode mode;
-      ASSERT(idx == scope_info->FunctionContextSlotIndex(name, &mode));
-#endif
-      SetClosureReference(js_obj, entry, name, context->get(idx));
+      int idx = scope_info->FunctionContextSlotIndex(name, &mode);
+      if (idx >= 0) {
+        SetClosureReference(js_obj, entry, name, context->get(idx));
+      }
     }
   }
 }
 
 
 void V8HeapExplorer::ExtractPropertyReferences(JSObject* js_obj,
                                                HeapEntry* entry) {
   if (js_obj->HasFastProperties()) {
     DescriptorArray* descs = js_obj->map()->instance_descriptors();
     for (int i = 0; i < descs->number_of_descriptors(); i++) {
@@ skipping 1628 matching lines @@
 
 
 void HeapSnapshotJSONSerializer::SortHashMap(
     HashMap* map, List<HashMap::Entry*>* sorted_entries) {
   for (HashMap::Entry* p = map->Start(); p != NULL; p = map->Next(p))
     sorted_entries->Add(p);
   sorted_entries->Sort(SortUsingEntryValue);
 }
 
 } }  // namespace v8::internal