V8 Buildbot: Add mac64 asan trybot.

masters/master.tryserver.v8/master.cfg

 #!/usr/bin/env python
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 
 from common import chromium_utils
 
 from master import master_utils
@@ skipping 58 matching lines @@
     ('v8_win_nosnap_shared_compile_rel', 'win_nosnap_shared'),
     ('v8_win_nosnap_shared_rel', 'win_nosnap_shared'),
     ('v8_win64_rel', 'win64'),
     ('v8_win64_compile_rel', 'win64'),
     ('v8_win64_ninja_rel', 'win64_ninja'),
     ('v8_win64_dbg', 'win64'),
     ('v8_mac_rel', 'mac'),
     ('v8_mac_dbg', 'mac'),
     ('v8_mac64_rel', 'mac64'),
     ('v8_mac64_dbg', 'mac64'),
+    ('v8_mac64_asan_rel', 'mac64_asan'),
     ('v8_linux_arm_rel', 'arm'),
     ('v8_linux_arm_dbg', 'arm'),
     ('v8_linux_arm64_rel', 'arm64'),
     ('v8_linux_arm64_dbg', 'arm64'),
     ('v8_linux_mipsel_compile_rel', 'mipsel'),
     ('v8_linux_mips64el_compile_rel', 'mips64el'),
     ('v8_android_arm_compile_rel', 'android_arm'),
   ]
 ]
 
@@ skipping 124 matching lines @@
 c['logHorizon'] = 2000
 # Must be at least 2x the number of slaves.
 c['eventHorizon'] = 60
 # Must be at least 2x the number of on-going builds.
 c['buildCacheSize'] = 60
 
 ####### PROJECT IDENTITY
 
 c['projectName'] = ActiveMaster.project_name
 c['projectURL'] = config.Master.project_url