Remove outdated comment.

src/utils.h

 // Copyright 2012 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.
 
 #ifndef V8_UTILS_H_
 #define V8_UTILS_H_
 
 #include <limits.h>
 #include <stdlib.h>
 #include <string.h>
@@ skipping 1024 matching lines @@
                  const char* str, int size, bool verbose = true);
 
 
 // ----------------------------------------------------------------------------
 // Memory
 
 // Copies words from |src| to |dst|. The data spans must not overlap.
 template <typename T>
 inline void CopyWords(T* dst, const T* src, size_t num_words) {
   STATIC_ASSERT(sizeof(T) == kPointerSize);
-  // TODO(mvstanton): disabled because mac builds are bogus failing on this
-  // assert. They are doing a signed comparison. Investigate in
-  // the morning.
-  // DCHECK(Min(dst, const_cast<T*>(src)) + num_words <=
-  //       Max(dst, const_cast<T*>(src)));
+  DCHECK(Min(dst, const_cast<T*>(src)) + num_words <=
+         Max(dst, const_cast<T*>(src)));
   DCHECK(num_words > 0);
 
   // Use block copying MemCopy if the segment we're copying is
   // enough to justify the extra call/setup overhead.
   static const size_t kBlockCopyLimit = 16;
 
   if (num_words < kBlockCopyLimit) {
     do {
       num_words--;
       *dst++ = *src++;
@@ skipping 655 matching lines @@
  private:
   T value_;
   ThreadedListZoneEntry<T>* next_;
   DISALLOW_COPY_AND_ASSIGN(ThreadedListZoneEntry);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_UTILS_H_