rem: prefClearCache(nsINetDataCacheManager.MEM_CACHE); 
add: prefClearCache(Components.interfaces.nsICache.STORE_IN_MEMORY); 
context: function prefClearMemCache(){  prefClearCache(nsINetDataCacheManager.MEM_CACHE);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d04770c91be21f70d52743300774a545b4dea171/pref-cache.js/buggy/xpfe/components/prefwindow/resources/content/pref-cache.js