Fix the lint error.

src/runtime.cc

 // Copyright 2006-2008 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 3991 matching lines @@
  public:
   ArrayConcatVisitor(Handle<FixedArray> storage,
                      uint32_t index_limit,
                      bool fast_elements) :
       storage_(storage), index_limit_(index_limit),
       fast_elements_(fast_elements), index_offset_(0) { }
 
   void visit(uint32_t i, Handle<Object> elm) {
     uint32_t index = i + index_offset_;
     if (index >= index_limit_) return;
- 
+
     if (fast_elements_) {
       ASSERT(index < static_cast<uint32_t>(storage_->length()));
       storage_->set(index, *elm);
 
     } else {
       Handle<Dictionary> dict = Handle<Dictionary>::cast(storage_);
       Handle<Dictionary> result =
           Factory::DictionaryAtNumberPut(dict, index, elm);
       if (!result.is_identical_to(dict))
         storage_ = result;
@@ skipping 1743 matching lines @@
 
 void Runtime::PerformGC(Object* result) {
   Failure* failure = Failure::cast(result);
   // Try to do a garbage collection; ignore it if it fails. The C
   // entry stub will throw an out-of-memory exception in that case.
   Heap::CollectGarbage(failure->requested(), failure->allocation_space());
 }
 
 
 } }  // namespace v8::internal