Update re2

third_party/re2/re2/testing/exhaustive_tester.cc

 // Copyright 2008 The RE2 Authors.  All Rights Reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // Exhaustive testing of regular expression matching.
 
 // Each test picks an alphabet (e.g., "abc"), a maximum string length,
 // a maximum regular expression length, and a maximum number of letters
 // that can appear in the regular expression.  Given these parameters,
 // it tries every possible regular expression and string, verifying that
@@ skipping 130 matching lines @@
   }
 }
 
 // Runs an exhaustive test on the given parameters.
 void ExhaustiveTest(int maxatoms, int maxops,
                     const vector<string>& alphabet,
                     const vector<string>& ops,
                     int maxstrlen, const vector<string>& stralphabet,
                     const string& wrapper,
                     const string& topwrapper) {
-  if (DEBUG_MODE && FLAGS_quick_debug_mode) {
+  if (RE2_DEBUG_MODE && FLAGS_quick_debug_mode) {
     if (maxatoms > 1)
       maxatoms--;
     if (maxops > 1)
       maxops--;
     if (maxstrlen > 1)
       maxstrlen--;
   }
   ExhaustiveTester t(maxatoms, maxops, alphabet, ops,
                      maxstrlen, stralphabet, wrapper,
                      topwrapper);
@@ skipping 17 matching lines @@
                    Split("", alphabet),
                    RegexpGenerator::EgrepOps(),
                    maxstrlen,
                    Split("", stralphabet),
                    wrapper,
                    tops[i]);
   }
 }
 
 }  // namespace re2