Fix DCHECK with unsigned int in zone.cc.

src/zone.cc

 // 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.
 
 #include "src/zone.h"
 
 #include <cstring>
 
 #include "src/v8.h"
 
@@ skipping 246 matching lines @@
     V8::FatalProcessOutOfMemory("Zone");
     return nullptr;
   }
 
   // Recompute 'top' and 'limit' based on the new segment.
   Address result = RoundUp(segment->start(), kAlignment);
   position_ = result + size;
   // Check for address overflow.
   // (Should not happen since the segment is guaranteed to accomodate
   // size bytes + header and alignment padding)
-  DCHECK_GE(reinterpret_cast<uintptr_t>(position_),
-            reinterpret_cast<uintptr_t>(result));
+  DCHECK(reinterpret_cast<uintptr_t>(position_) >=
+         reinterpret_cast<uintptr_t>(result));
   limit_ = segment->end();
   DCHECK(position_ <= limit_);
   return result;
 }
 
 }  // namespace internal
 }  // namespace v8