[regexp] fix /\W/ui wrt \u017f and \u212a.

test/cctest/test-regexp.cc

 // Copyright 2012 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 551 matching lines @@
 
 static bool NotWord(uc16 c) {
   return !IsRegExpWord(c);
 }
 
 
 static void TestCharacterClassEscapes(uc16 c, bool (pred)(uc16 c)) {
   Zone zone(CcTest::i_isolate()->allocator(), ZONE_NAME);
   ZoneList<CharacterRange>* ranges =
       new(&zone) ZoneList<CharacterRange>(2, &zone);
-  CharacterRange::AddClassEscape(c, ranges, &zone);
+  CharacterRange::AddClassEscape(c, ranges, false, &zone);
   for (uc32 i = 0; i < (1 << 16); i++) {
     bool in_class = false;
     for (int j = 0; !in_class && j < ranges->length(); j++) {
       CharacterRange& range = ranges->at(j);
       in_class = (range.from() <= i && i <= range.to());
     }
     CHECK_EQ(pred(i), in_class);
   }
 }
 
@@ skipping 1442 matching lines @@
   v8::Local<v8::String> external =
       v8::String::NewExternalOneByte(isolate, new UncachedExternalString())
           .ToLocalChecked();
   CHECK(v8::Utils::OpenHandle(*external)->map() ==
         CcTest::i_isolate()->heap()->short_external_one_byte_string_map());
   v8::Local<v8::Object> global = env->Global();
   global->Set(env.local(), v8_str("external"), external).FromJust();
   CompileRun("var re = /y(.)/; re.test('ab');");
   ExpectString("external.substring(1).match(re)[1]", "z");
 }