Small polishing changes to the native js.

src/runtime/runtime-numbers.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/arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 533 matching lines @@
     x_scaled /= 10;
     tie = GREATER;
   }
 
   if (x_scaled < y_scaled) return Smi::FromInt(LESS);
   if (x_scaled > y_scaled) return Smi::FromInt(GREATER);
   return Smi::FromInt(tie);
 }
 
 
-RUNTIME_FUNCTION(Runtime_GetRootNaN) {
-  SealHandleScope shs(isolate);
-  DCHECK(args.length() == 0);
-  RUNTIME_ASSERT(isolate->bootstrapper()->IsActive());
-  return isolate->heap()->nan_value();
-}
-
-
 RUNTIME_FUNCTION(Runtime_MaxSmi) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);
   return Smi::FromInt(Smi::kMaxValue);
 }
 
 
 RUNTIME_FUNCTION(Runtime_NumberToString) {
   SealHandleScope shs(isolate);
   return __RT_impl_Runtime_NumberToStringRT(args, isolate);
@@ skipping 10 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_IsNonNegativeSmi) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(Object, obj, 0);
   return isolate->heap()->ToBoolean(obj->IsSmi() &&
                                     Smi::cast(obj)->value() >= 0);
 }
 }
 }  // namespace v8::internal