Port everything to class framework

The last patch in the sequence. Every place that was previously
setting prototype has been ported to Lang.Class, to make code more
concise and allow for better toString().

https://bugzilla.gnome.org/show_bug.cgi?id=664436

js/ui/searchDisplay.js

@@ -15,11 +15,9 @@ const Search = imports.ui.search;
 const MAX_SEARCH_RESULTS_ROWS = 1;
 
 
-function SearchResult(provider, metaInfo, terms) {
-    this._init(provider, metaInfo, terms);
-}
+const SearchResult = new Lang.Class({
+    Name: 'SearchResult',
 
-SearchResult.prototype = {
     _init: function(provider, metaInfo, terms) {
         this.provider = provider;
         this.metaInfo = metaInfo;
@@ -97,7 +95,7 @@ SearchResult.prototype = {
         else
             this.provider.activateResult(this.metaInfo.id, params);
     }
-};
+});
 
 
 const GridSearchResults = new Lang.Class({
@@ -179,11 +177,9 @@ const GridSearchResults = new Lang.Class({
     }
 });
 
-function SearchResults(searchSystem, openSearchSystem) {
-    this._init(searchSystem, openSearchSystem);
-}
+const SearchResults = new Lang.Class({
+    Name: 'SearchResults',
 
-SearchResults.prototype = {
     _init: function(searchSystem, openSearchSystem) {
         this._searchSystem = searchSystem;
         this._searchSystem.connect('search-updated', Lang.bind(this, this._updateCurrentResults));
@@ -483,4 +479,4 @@ SearchResults.prototype = {
         resultDisplay.activateSelected();
         Main.overview.hide();
     }
-};
+});