Added logging of the name of the test before it starts

Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py

 # Copyright (C) 2011 Google Inc. 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
@@ skipping 265 matching lines @@
             self._kill_driver()
         if not self._driver:
             self._driver = self._port.create_driver(self._worker_number)
 
         if not self._driver:
             # FIXME: Is this the best way to handle a device crashing in the middle of the test, or should we create
             # a new failure type?
             device_failed = True
             return device_failed
 
+        _log.debug("%s %s started" % (self._name, test_input.test_name))
         self._caller.post('started_test', test_input, test_timeout_sec)
         result = single_test_runner.run_single_test(self._port, self._options, self._results_directory,
             self._name, self._driver, test_input, stop_when_done)
 
         result.shard_name = shard_name
         result.worker_name = self._name
         result.total_run_time = time.time() - start
         result.test_number = self._num_tests
         self._num_tests += 1
         self._caller.post('finished_test', result)
@@ skipping 201 matching lines @@
         def split_at(seq, index):
             return (seq[:index], seq[index:])
 
         num_old_per_new = divide_and_round_up(len(old_shards), max_new_shards)
         new_shards = []
         remaining_shards = old_shards
         while remaining_shards:
             some_shards, remaining_shards = split_at(remaining_shards, num_old_per_new)
             new_shards.append(TestShard('%s_%d' % (shard_name_prefix, len(new_shards) + 1), extract_and_flatten(some_shards)))
         return new_shards