Add a hashCode to Command so reporting timings is 400 faster.

dart/tools/testing/dart/test_runner.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Classes and methods for executing tests.
  *
  * This module includes:
  * - Managing parallel execution of tests, including timeout checks.
  * - Evaluating the output of each test as pass/fail/crash/timeout.
@@ skipping 58 matching lines @@
     if (found) {
       return i;
     }
   }
   return -1;
 }
 
 
 /** A command executed as a step in a test case. */
 class Command {
+  static int nextHashCode = 0;
+  final int hashCode = nextHashCode++;
+

[kustermann, 2013/01/09 15:30:12]

You could add an '==' operator here as well.

[ahe, 2013/01/09 15:38:02]

Done.

   /** Path to the executable of this command. */
   String executable;
 
   /** Command line arguments to the executable. */
   List<String> arguments;
 
   /** Environment for the command */
   Map<String,String> environment;
 
   /** The actual command line that will be executed. */
@@ skipping 1649 matching lines @@
         // the developer doesn't waste his or her time trying to fix a bunch of
         // tests that appear to be broken but were actually just flakes that
         // didn't get retried because there had already been one failure.
         bool allowRetry = _MAX_FAILED_NO_RETRY > _progress.numFailedTests;
         new RunningProcess(test, allowRetry, this).start();
       }
       _numProcesses++;
     }
   }
 }