Add parentheses to prevent precedence errors....

src/jsregexp.cc

 // Copyright 2006-2009 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 4059 matching lines @@
       return;
     }
   }
 
   // Step through the range finding equivalent characters.
   ZoneList<unibrow::uchar> *characters = new ZoneList<unibrow::uchar>(100);
   for (int i = bottom; i <= top; i++) {
     int length = uncanonicalize.get(i, '\0', chars);
     for (int j = 0; j < length; j++) {
       uc32 chr = chars[j];
-      if (chr != i && chr < bottom || chr > top) {
+      if (chr != i && (chr < bottom || chr > top)) {
         characters->Add(chr);
       }
     }
   }
 
   // Step through the equivalent characters finding simple ranges and
   // adding ranges to the character class.
   if (characters->length() > 0) {
     int new_from = characters->at(0);
     int new_to = new_from;
@@ skipping 509 matching lines @@
   RegExpMacroAssemblerIrregexp macro_assembler(codes);
 #endif
 
   return compiler.Assemble(&macro_assembler,
                            node,
                            data->capture_count,
                            pattern);
 }
 
 }}  // namespace v8::internal