Add mb config for CrWinClang64(dbg).

tools/mb/mb_config.pyl

 # Copyright 2015 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.
 
 {
   # This is the list of configs that you can pass to mb; each config
   # represents a particular combination of GYP_DEFINES/gn args that
   # we must support. A given config *may* be platform-specific but
   # is not necessarily so (i.e., we might have mac, win, and linux
   # bots all using the 'gn_release_bot' config).
@@ skipping 12 matching lines @@
     'dev_gyp_release': ['gyp', 'release', 'shared'],
     'gn_release_bot': ['gn', 'release_bot'],
     'gn_release_bot_x86': ['gn', 'release_bot', 'x86'],
     'gn_release_trybot': ['gn', 'release_trybot'],
     'gn_release_trybot_x86': ['gn', 'release_trybot', 'x86'],
     'gn_debug_bot': ['gn', 'debug_bot'],
     'gn_debug_bot_x86': ['gn', 'debug_bot', 'x86'],
     'gn_debug_static_bot': ['gn', 'debug_static_bot'],
     'gn_debug_static_bot_x86': ['gn', 'debug_static_bot', 'x86'],
     'gyp_release_bot': ['gyp', 'release_bot'],
+    'win_clang_debug_bot':
+        ['gn', 'clang', 'debug', 'shared', 'minimal_symbols'],

[Dirk Pranke, 2015/06/09 01:14:52]

The style rules for this file aren't set in stone, but you can see I'm trying to
usually include "gyp" or "gn" in the name of the config, so that you can see at
a glance down in the bot mappings whether a given bot is using gyp or gn. I also
tend to leave out the platform if possible"

So, I might refactor this a bit as:

"gn_clang_debug_bot": ['gn', 'clang', 'debug_bot']

(shared and minimal symbols are mixed in automatically w/ debug_bot).

[Nico, 2015/06/09 01:19:24]

debug_bot also enables goma from what I understand (?), and goma doesn't work
with clang/win yet.

   },
   
   # This is a list of configs that do not actually exist on any bot
   # but are used so commonly by devs that we must support them.
   'common_dev_configs': [
     'dev_gn_debug',
     'dev_gn_release',
     'dev_gyp_debug',
     'dev_gyp_release',
   ],
@@ skipping 18 matching lines @@
     'android': {
       'gn_args': 'target_os="android"',
       'gyp_defines': 'OS=android',
     },
 
     'chromeos': {
       'gn_args': 'target_os="chromeos"',
       'gyp_defines': 'chromeos=1',
     },
 
+    'clang': {
+      'gn_args': 'is_clang=true',
+      'gyp_defines': 'clang=1',
+    },
+
     'dcheck_always_on': {
       'gn_args': 'dcheck_always_on=true',
       'gyp_defines': 'dcheck_always_on=1',
     },
 
     'debug': {
       'gn_args': 'is_debug=true',
       'gyp_config': 'Debug',
     },
 
@@ skipping 79 matching lines @@
       'Win x64 GN (dbg)': 'gn_debug_bot',
       'Win8 GN': 'gn_release_bot_x86',
       'Win8 GN (dbg)': 'gn_debug_bot_x86',
     },
     'chromium.webkit': {
       'Android GN': 'android_gn_release_bot',
       'Android GN (dbg)': 'android_gn_debug_bot',
       'Linux GN': 'gn_release_bot',
       'Linux GN (dbg)': 'gn_debug_bot'
     },
+    'chromium.fyi': {
+      'CrWinClang64(dbg)': 'win_clang_debug_bot',
+    },

[Dirk Pranke, 2015/06/09 01:14:52]

and then rename this to just 'gn_clang_debug_bot'.

     'chromium.webrtc.fyi': {
       'Android GN': 'android_gn_release_bot',
       'Android GN (dbg)': 'android_gn_debug_bot',
       'Linux GN': 'gn_release_bot',
       'Linux GN (dbg)': 'gn_debug_bot',
       'Mac GN': 'gn_release_bot',
       'Mac GN (dbg)': 'gn_debug_static_bot',
       'Win GN': 'gn_release_bot_x86',
       'Win GN (dbg)': 'gn_debug_static_bot_x86',
     },
@@ skipping 29 matching lines @@
       'win8_chromium_gn_dbg': 'gn_debug_static_bot_x86',
       'win8_chromium_gn_rel': 'gn_release_trybot_x86',
       'win8_chromium_gn_upload': 'gn_release_bot',
     },
     'tryserver.v8': {
       'v8_linux_chromium_gn_rel': 'gn_release_trybot',
       'v8_android_chromium_gn_dbg': 'android_gn_debug_bot',
     },
   },
 }