rem: throw "empty element in <thread-stopped-at> event" 
add: opera.postError( "empty element in <thread-stopped-at> event"); 
context:   this['thread-stopped-at'] = function(xml)  {    var stopAt = {};    var id = getStopAtId();    var children = xml.documentElement.childNodes, child=null, i=0;    for ( ; child = children[i]; i++)    {      if(child.firstChild)      {        stopAt[child.nodeName] = child.firstChild.nodeValue;      }      else      {        throw "empty element in <thread-stopped-at> event"        stopAt[child.nodeName] = null      }    }    __stopAt[id] = stopAt;    var line = parseInt( stopAt['line-number'] );    if( typeof line == 'number' )    {      //self.backtrace(stopAt);      helpers.showLine( stopAt['script-id'], line );      helpers.disableContinues(id, false);    }    else    {      throw 'not a line number: '+stopAt['line-number'];    }  }
meta: 7593	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7593/9fa733e314f99e0136022a89cb4f805bf61aa2a2/ecma-debugger.js/buggy/src/ecma-debugger/ecma-debugger.js