ExecutableAccessorInfo::clear_setter should set a null foreign pointer

test/cctest/test-accessors.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 560 matching lines @@
       "Object.defineProperty(this.__proto__, 'x', {"
       "    get : function() { return this; },"
       "    set : function() { set_value = this; }"
       "});"
       "function getter() { return x; }"
       "function setter() { x = 1; }"
       "for (var i = 0; i < 4; i++) { getter(); setter(); }");
   CHECK(v8::Utils::OpenHandle(*CompileRun("getter()"))->IsJSGlobalProxy());
   CHECK(v8::Utils::OpenHandle(*CompileRun("set_value"))->IsJSGlobalProxy());
 }
+
+
+static void EmptyGetter(Local<Name> name,
+                        const v8::PropertyCallbackInfo<v8::Value>& info) {
+  ApiTestFuzzer::Fuzz();
+}
+
+
+static void OneProperty(Local<String> name,
+                        const v8::PropertyCallbackInfo<v8::Value>& info) {
+  ApiTestFuzzer::Fuzz();
+  info.GetReturnValue().Set(v8_num(1));
+}
+
+
+THREADED_TEST(Regress433458) {
+  LocalContext env;
+  v8::Isolate* isolate = env->GetIsolate();
+  v8::HandleScope scope(isolate);
+  v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New(isolate);
+  obj->SetHandler(v8::NamedPropertyHandlerConfiguration(EmptyGetter));
+  obj->SetNativeDataProperty(v8_str("prop"), OneProperty);
+  env->Global()->Set(v8_str("obj"), obj->NewInstance());
+  CompileRun(
+      "Object.defineProperty(obj, 'prop', { writable: false });"
+      "Object.defineProperty(obj, 'prop', { writable: true });");
+}