add symbols for ios unittests

BUG=none
TEST=none
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/15939005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1025 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

@@ -1,6 +1,6 @@
 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1024
+Version: 1025
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1024
+#define LIBYUV_VERSION 1025
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

libyuv_test.gyp

@@ -56,6 +56,12 @@
             'LIBYUV_DISABLE_NEON'
           ],
         }],
+        [ 'OS == "ios"', {
+          'xcode_settings': {
+            'DEBUGGING_SYMBOLS': 'YES',
+            'DEBUG_INFORMATION_FORMAT' : 'dwarf-with-dsym',
+          },
+        }],
         [ 'OS != "ios"', {
           'defines': [
             'HAVE_JPEG',