Improve error reporting in benchmarks.

benchmarks/run.js

 // Copyright 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.
 
 
 load('base.js');
 load('richards.js');
 load('deltablue.js');
 load('crypto.js');
 load('raytrace.js');
 load('earley-boyer.js');
 
+var success = true;
 
 function PrintResult(name, result) {
   print(name + ': ' + result);
 }
 
 
+function PrintError(name, error) {
+  PrintResult(name, error);
+  success = false;
+}
+
+
 function PrintScore(score) {
-  print('----');
-  print('Score (version ' + BenchmarkSuite.version + '): ' + score);
+  if (success) {
+    print('----');
+    print('Score (version ' + BenchmarkSuite.version + '): ' + score);
+  }
 }
 
 
 BenchmarkSuite.RunSuites({ NotifyResult: PrintResult,
+                           NotifyError: PrintError,
                            NotifyScore: PrintScore });