rem: return (str != str.toLowerCase()); 
add: return (str != str.toLowerCase() && str != str.toUpperCase()); 
context:   shouldBeCaseSensitive: function (str)  {    if (this.mTypeAheadCaseSensitive == 0)      return false;    if (this.mTypeAheadCaseSensitive == 1)      return true;    return (str != str.toLowerCase());  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/056c3ec45aa8d6a0378029e97aa11c89d0ad6170/findBar.js/clean/toolkit/components/typeaheadfind/content/findBar.js