Use internal array as API function cache.

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index 43a243def444f0376c34e95f961ec5a252c80080..fa671dc66173057586d78c2f1b6faf22627b6393 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -19653,6 +19653,17 @@ THREADED_TEST(Regress2746) {
 }
 
 
+THREADED_TEST(Regress260106) {
+  LocalContext context;
+  v8::HandleScope scope(context->GetIsolate());
+  Local<FunctionTemplate> templ = FunctionTemplate::New(DummyCallHandler);
+  CompileRun("for (var i = 0; i < 128; i++) Object.prototype[i] = 0;");
+  Local<Function> function = templ->GetFunction();
+  CHECK(!function.IsEmpty());
+  CHECK(function->IsFunction());
+}
+
+
 #ifndef WIN32
 class ThreadInterruptTest {
  public: