add:    if (removeFromDatabase && this._formHistoryResult && index < this._formHistoryResult.matchCount) {  this._formHistoryResult.removeValueAt(index, true); } 
context:   removeValueAt: function(index, removeFromDatabase) {    this._results.splice(index, 1);    this._comments.splice(index, 1);  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/4cc1cb86151a3fc67b9251c92c877719457c3a1f/nsSearchSuggestions.js/clean/browser/components/search/nsSearchSuggestions.js