[build] Port using prebuilt instrumented libraries for msan

infra/mb/mb_config.pyl

 # Copyright 2016 The V8 project authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   # This is a map of buildbot master names -> buildbot builder names ->
   # config names (where each config name is a key in the 'configs' dict,
   # below). MB uses this dict to look up which config to use for a given bot.
   # Bots are ordered by appearance on waterfall.
   'masters': {
@@ skipping 480 matching lines @@
       'gn_args': 'symbol_level=1',
       'gyp_defines': 'fastbuild=1',
     },
 
     'mips': {
       'gn_args': 'target_cpu="mips"',
       'gyp_defines': 'target_arch=mips',
     },
 
     'msan': {
-      'gn_args': 'is_msan=true',
-      'gyp_defines': 'clang=1 msan=1',
+      'gn_args': ('is_msan=true msan_track_origins=2 '
+                  'use_prebuilt_instrumented_libraries=true'),
+      'gyp_defines': ('clang=1 msan=1 msan_track_origins=2 '
+                      'use_prebuilt_instrumented_libraries=1'),
     },
 
     'release': {
       'gn_args': 'is_debug=false',
     },
 
     'release_bot': {
       'mixins': ['release', 'static', 'goma'],
     },
 
@@ skipping 145 matching lines @@
       'gn_args': 'target_cpu="x64"',
       'gyp_defines': 'target_arch=x64',
     },
 
     'x86': {
       'gn_args': 'target_cpu="x86"',
       'gyp_defines': 'target_arch=ia32',
     },
   },
 }