[strong] Check arity of functions

src/runtime/runtime-function.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/cpu-profiler.h"
@@ skipping 613 matching lines @@
   return isolate->heap()->ToBoolean(frame->IsConstructor());
 }
 
 
 RUNTIME_FUNCTION(Runtime_IsFunction) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(Object, obj, 0);
   return isolate->heap()->ToBoolean(obj->IsJSFunction());
 }
+
+
+RUNTIME_FUNCTION(Runtime_ThrowStrongModeTooFewArguments) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 0);
+  THROW_NEW_ERROR_RETURN_FAILURE(isolate,
+                                 NewTypeError("strong_mode_too_few_arguments",
+                                              HandleVector<Object>(NULL, 0)));
+}
 }
 }  // namespace v8::internal