Add interceptor support for symbols

test/cctest/test-debug.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 4252 matching lines @@
 
 static void IndexedEnum(const v8::PropertyCallbackInfo<v8::Array>& info) {
   v8::Isolate* isolate = info.GetIsolate();
   v8::Handle<v8::Array> result = v8::Array::New(isolate, 2);
   result->Set(v8::Integer::New(isolate, 0), v8::Number::New(isolate, 1));
   result->Set(v8::Integer::New(isolate, 1), v8::Number::New(isolate, 10));
   info.GetReturnValue().Set(result);
 }
 
 
-static void NamedGetter(v8::Local<v8::String> name,
+static void NamedGetter(v8::Local<v8::Name> name,
                         const v8::PropertyCallbackInfo<v8::Value>& info) {
-  v8::String::Utf8Value n(name);
+  if (name->IsSymbol()) return;
+  v8::String::Utf8Value n(v8::Local<v8::String>::Cast(name));
   if (strcmp(*n, "a") == 0) {
     info.GetReturnValue().Set(v8::String::NewFromUtf8(info.GetIsolate(), "AA"));
     return;
   } else if (strcmp(*n, "b") == 0) {
     info.GetReturnValue().Set(v8::String::NewFromUtf8(info.GetIsolate(), "BB"));
     return;
   } else if (strcmp(*n, "c") == 0) {
     info.GetReturnValue().Set(v8::String::NewFromUtf8(info.GetIsolate(), "CC"));
     return;
   } else {
@@ skipping 3118 matching lines @@
   v8::Isolate* isolate = env->GetIsolate();
   v8::HandleScope scope(isolate);
   v8::Debug::SetDebugEventListener(DebugBreakTriggerTerminate);
   TerminationThread terminator(isolate);
   terminator.Start();
   v8::TryCatch try_catch;
   v8::Debug::DebugBreak(isolate);
   CompileRun("while (true);");
   CHECK(try_catch.HasTerminated());
 }