Start running in batch mode as default for dart2js.

tools/bots/compiler.py

 #!/usr/bin/python
 
 # 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.
 
 """
 Dart2js buildbot steps
 
 Runs tests for the  dart2js compiler.
@@ skipping 45 matching lines @@
   system = None
   checked = False
   host_checked = False
   minified = False
   shard_index = None
   total_shards = None
   test_set = None
   csp = None
   arch = None
   dart2js_full = False
-  batch = False
+  # We default to true for running in batch mode on dart2js
+  batch = True
   builder_tag = None
 
   dart2js_pattern = re.match(DART2JS_BUILDER, builder_name)
   dart2js_full_pattern = re.match(DART2JS_FULL_BUILDER, builder_name)
   web_pattern = re.match(WEB_BUILDER, builder_name)
   dartium_pattern = re.match(DARTIUM_BUILDER, builder_name)
 
   if web_pattern:
     compiler = 'dart2js'
     runtime = web_pattern.group(1)
@@ skipping 39 matching lines @@
     if dart2js_pattern.group(6) == 'checked':
       checked = True
     if dart2js_pattern.group(6) == 'host-checked':
       host_checked = True
     if dart2js_pattern.group(8) == 'host-checked':
       host_checked = True
     if dart2js_pattern.group(10) == 'minified':
       minified = True
     if dart2js_pattern.group(12) == 'x64':
       arch = 'x64'
-    if dart2js_pattern.group(14) == 'batch':
-      batch = True
     shard_index = dart2js_pattern.group(15)
     total_shards = dart2js_pattern.group(16)
   elif dartium_pattern:
     compiler = 'none'
     runtime = 'dartium'
     mode = 'release'
     system = dartium_pattern.group(1)
   else :
     return None
 
@@ skipping 261 matching lines @@
     if build_info.mode == 'debug':
       target = 'dart2js_bot_debug'
     args = [sys.executable, './tools/build.py', '--mode=' + build_info.mode,
             '--arch=' + build_info.arch, target]
     print 'Build SDK and d8: %s' % (' '.join(args))
     bot.RunProcess(args)
 
 
 if __name__ == '__main__':
   bot.RunBot(GetBuildInfo, RunCompilerTests, build_step=BuildCompiler)