Change type of snapshot from char array to byte array to avoid portability pr...

src/snapshot-empty.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 15 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Used for building without snapshots.
 
 #include "v8.h"
 
 #include "snapshot.h"
 
 namespace v8 { namespace internal {
 
-const char Snapshot::data_[] = { 0 };
+const byte Snapshot::data_[] = { 0 };
 int Snapshot::size_ = 0;
 
 } }  // namespace v8::internal