Update ICU to 5.2 (matching chromium)

test/intl/intl.status

 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 20 matching lines @@
 [ALWAYS, {
   'date-format/resolved-options': [FAIL],
   'date-format/timezone': [FAIL],
   'general/v8Intl-exists': [FAIL],
 
   # TODO(jochen): The following test is flaky.
   'overrides/caching': [PASS, FAIL],
 
   # BUG(2899): default locale for search fails on mac and on android.
   'collator/default-locale': [['system == macos or arch == android_arm or arch == android_ia32', FAIL]],
+
+  # BUG(v8:3454).
+  'date-format/parse-MMMdy': [FAIL],
+  'date-format/parse-mdyhms': [FAIL],
+  'number-format/parse-decimal': [FAIL],
+  'number-format/parse-percent': [FAIL],
 }],  # ALWAYS
 ]