1948: Xcode: Add xcdatamodeld = wrapper.xcdatamodeld in extension_map

1947: Introduce '--no-duplicate-basename-check' option to disable the check of duplicate basenames 
1946: Makes analyzer strip off a leading path separator
1945: msvs: ensure that failing actions make the build fail with multiple actions

BUG=gyp:303,chromium:383609,gyp:264,gyp:384
TEST=none
R=mark@chromium.org

Review URL: https://codereview.chromium.org/376263002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282161 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -160,7 +160,7 @@ deps = {
     (Var("googlecode_url") % "grit-i18n") + "/trunk@170",
 
   "src/tools/gyp":
-    (Var("googlecode_url") % "gyp") + "/trunk@1944",
+    (Var("googlecode_url") % "gyp") + "/trunk@1948",
 
   "src/tools/swarming_client":
     Var("chromium_git") + "/external/swarming.client.git@" +