Devtools: [WIP] Implement enhanced devtools extension language APIs

Source/devtools/front_end/sources/module.json

 {
     "extensions": [
         {
             "type": "@WebInspector.PanelFactory",
             "name": "sources",
             "title": "Sources",
             "order": 2,
             "className": "WebInspector.SourcesPanelFactory"
         },
         {
@@ skipping 130 matching lines @@
             "contextTypes": ["WebInspector.DebuggerModel.Location"],
             "className": "WebInspector.SourcesPanel.DebuggerLocationRevealer"
         },
         {
             "type": "@WebInspector.Revealer",
             "contextTypes": ["WebInspector.UISourceCode"],
             "className": "WebInspector.SourcesPanel.UISourceCodeRevealer"
         },
         {
             "type": "@WebInspector.Revealer",
+            "contextTypes": ["WebInspector.UISourceCodeMessages"],
+            "className": "WebInspector.SourcesPanel.LineMessageRevealer"
+        },
+        {
+            "type": "@WebInspector.Revealer",
+            "contextTypes": ["WebInspector.SearchResultsCollection"],
+            "className": "WebInspector.AdvancedSearchView.SearchResultsRevealer"
+        },
+        {
+            "type": "@WebInspector.Revealer",
             "contextTypes": ["WebInspector.DebuggerPausedDetails"],
             "className": "WebInspector.SourcesPanel.DebuggerPausedDetailsRevealer"
         },
         {
             "type": "@WebInspector.SourcesView.EditorAction",
             "className": "WebInspector.InplaceFormatterEditorAction"
         },
         {
             "type": "@WebInspector.SourcesView.EditorAction",
             "className": "WebInspector.ScriptFormatterEditorAction"
@@ skipping 172 matching lines @@
         "filteredItemSelectionDialog.css",
         "uiList.css",
         "navigatorView.css",
         "revisionHistory.css",
         "serviceWorkersSidebar.css",
         "sourcesPanel.css",
         "sourcesSearch.css",
         "sourcesView.css"
     ]
 }