Fix test failures in debug mode w/snapshots. It turns out that not

src/log.cc

 // Copyright 2009 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 1243 matching lines @@
 
 void Logger::LogCodeObject(Object* object) {
   if (FLAG_log_code) {
     Code* code_object = Code::cast(object);
     LogEventsAndTags tag = Logger::STUB_TAG;
     const char* description = "Unknown code from the snapshot";
     switch (code_object->kind()) {
       case Code::FUNCTION:
         return;  // We log this later using LogCompiledFunctions.
       case Code::STUB:
-        description = CodeStub::MajorName(code_object->major_key());
+        description = CodeStub::MajorName(code_object->major_key(), true);
+        if (description == NULL)
+          description = "A stub from the snapshot";
         tag = Logger::STUB_TAG;
         break;
       case Code::BUILTIN:
         description = "A builtin from the snapshot";
         tag = Logger::BUILTIN_TAG;
         break;
       case Code::KEYED_LOAD_IC:
         description = "A keyed load IC from the snapshot";
         tag = Logger::KEYED_LOAD_IC_TAG;
         break;
@@ skipping 266 matching lines @@
   // Otherwise, if the sliding state window computation has not been
   // started we do it now.
   if (sliding_state_window_ == NULL) {
     sliding_state_window_ = new SlidingStateWindow();
   }
 #endif
 }
 
 
 } }  // namespace v8::internal