Move public symbols to the root set.

test/cctest/test-api.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 3117 matching lines @@
   CompileRun(script.c_str());
   v8::Local<Value> value = env->Global()->Get(v8_str("sym"));
 
   CHECK(!value.IsEmpty());
   CHECK(!symbol.IsEmpty());
   CHECK(value->SameValue(symbol));
 }
 
 
 THREADED_TEST(WellKnownSymbols) {
+  CheckWellKnownSymbol(v8::Symbol::GetToStringTag, "Symbol.toStringTag");
   CheckWellKnownSymbol(v8::Symbol::GetIterator, "Symbol.iterator");
   CheckWellKnownSymbol(v8::Symbol::GetUnscopables, "Symbol.unscopables");
 }
 
 
 THREADED_TEST(GlobalPrivates) {
   LocalContext env;
   v8::Isolate* isolate = env->GetIsolate();
   v8::HandleScope scope(isolate);
 
@@ skipping 21052 matching lines @@
   char chunk2[] =
       "XX\xec\x92\x81r = 13;\n"
       "  return foob\xec\x92\x81\xec\x92\x81r;\n"
       "}\n";
   chunk1[strlen(chunk1) - 1] = reference[0];
   chunk2[0] = reference[1];
   chunk2[1] = reference[2];
   const char* chunks[] = {chunk1, chunk2, "foo();", NULL};
   RunStreamingTest(chunks, v8::ScriptCompiler::StreamedSource::UTF8);
 }