Created attachment 158769 [details] [review]
Patch for parsing surrogate pairs in json string.

Overview: 
  json_parser_load_from_*() aborts when json string contains UTF16 surrogate pairs. (ex. "\ud842\udf9f")


Step to Reproduce: 
  The following piece should reproduce the bug.
  --- 
  gchar * json = "{\"text\": \"\\u3092\\ud842\\udf9f\\u308b\"}";
  JsonParser * parser = json_parser_new();
  json_parser_load_from_data(parser, json, -1, NULL);
  ---


Actual Results:
  Aborted printing "Json:ERROR:./json-scanner.c:895:json_scanner_get_unichar: assertion failed: (g_unichar_validate (uchar))"


Build Date & Platform: 
  Build 2010-04-15 on Ubuntu 9.04


Additional Information: 
  I attached small patch. Hope this helps.