* Fix bug in regexp parser.

regexp2000/test/cctest/test-regexp.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 195 matching lines @@
   CHECK_ESCAPES("a(?!b)", false);
   CHECK_ESCAPES("\\x60", true);
   CHECK_ESCAPES("\\u0060", true);
   CHECK_ESCAPES("\\cA", true);
   CHECK_ESCAPES("\\q", true);
   CHECK_ESCAPES("\\1112", true);
   CHECK_ESCAPES("\\0", true);
   CHECK_ESCAPES("(a)\\1", false);
 }
 
+TEST(ParserRegression) {
+  CHECK_PARSE_EQ("[A-Z$-][x]", "(: [A-Z $ -] [x])");
+}
 
 static void ExpectError(const char* input,
                         const char* expected) {
   v8::HandleScope scope;
   unibrow::Utf8InputBuffer<> buffer(input, strlen(input));
   ZoneScope zone_scope(DELETE_ON_EXIT);
   RegExpParseResult result;
   CHECK_EQ(false, v8::internal::ParseRegExp(&buffer, &result));
   CHECK(result.tree == NULL);
   CHECK(!result.error.is_null());
@@ skipping 285 matching lines @@
   Handle<String> f2 = Factory::NewStringFromAscii(CStrVector("foo bar baz"));
   CHECK(Re2kInterpreter::Match(*array, *f2, captures, 0));
   CHECK_EQ(0, captures[0]);
   CHECK_EQ(2, captures[1]);
 
   Handle<String> f3 = Factory::NewStringFromAscii(CStrVector("tomfoolery"));
   CHECK(Re2kInterpreter::Match(*array, *f3, captures, 0));
   CHECK_EQ(3, captures[0]);
   CHECK_EQ(5, captures[1]);
 }