Add the llvm-symbolizer target which can be used by LKGR bots to package the symbolizer.

build/sanitizers/sanitizers.gyp

 # Copyright 2014 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.
 
 {
   'targets': [
     {
       'target_name': 'sanitizer_options',
       'type': 'static_library',
       'toolsets': ['host', 'target'],
@@ skipping 38 matching lines @@
           ['_type=="executable"', {
             'xcode_settings': {
               'OTHER_LDFLAGS': [
                 '-Wl,-u,__sanitizer_options_link_helper',
               ],
             },
           }],
         ],
       },
     },
+    {
+      # Copy llvm-symbolizer to the product dir so that LKGR bots can package it.
+      'target_name': 'llvm-symbolizer',
+      'type': 'none',
+      'variables': {
+        # Path is relative to this GYP file.
+        'llvm_symbolizer_path':
+            '../../third_party/llvm-build/Release+Asserts/bin/llvm-symbolizer',
+      },
+      'conditions': [
+        ['clang==1', {
+          'copies': [
+            {
+              'destination': '<(PRODUCT_DIR)',
+              'files': [
+                '<(llvm_symbolizer_path)',
+              ],
+            },
+          ],
+        }],
+      ],
+    },
   ],
 }