DevTools: Support harmony variable scopes.

Source/devtools/front_end/sources/ScopeChainSidebarPane.js

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 51 matching lines @@
                 delete this._expandedSections[section.title];
         }
 
         this._sections = [];
 
         var foundLocalScope = false;
         var scopeChain = callFrame.scopeChain;
         for (var i = 0; i < scopeChain.length; ++i) {
             var scope = scopeChain[i];
             var title = null;
-            var subtitle = scope.object.description;
             var emptyPlaceholder = null;
             var extraProperties = [];
-            var declarativeScope;
+            var declarativeScope = true;
 
             switch (scope.type) {
             case DebuggerAgent.ScopeType.Local:
                 foundLocalScope = true;
                 title = WebInspector.UIString("Local");
                 emptyPlaceholder = WebInspector.UIString("No Variables");
-                subtitle = undefined;
                 var thisObject = callFrame.thisObject();
                 if (thisObject)
                     extraProperties.push(new WebInspector.RemoteObjectProperty("this", thisObject));
                 if (i == 0) {
                     var details = callFrame.target().debuggerModel.debuggerPausedDetails();
                     if (!callFrame.isAsync()) {
                         var exception = details.exception();
                         if (exception)
                             extraProperties.push(new WebInspector.RemoteObjectProperty("<exception>", exception));
                     }
                     var returnValue = callFrame.returnValue();
                     if (returnValue)
                         extraProperties.push(new WebInspector.RemoteObjectProperty("<return>", returnValue));
                 }
-                declarativeScope = true;
                 break;
             case DebuggerAgent.ScopeType.Closure:
                 title = WebInspector.UIString("Closure");
                 emptyPlaceholder = WebInspector.UIString("No Variables");
-                subtitle = undefined;
-                declarativeScope = true;
                 break;
             case DebuggerAgent.ScopeType.Catch:
                 title = WebInspector.UIString("Catch");
-                subtitle = undefined;
-                declarativeScope = true;
+                break;
+            case DebuggerAgent.ScopeType.Block:
+                title = WebInspector.UIString("Block");
+                break;
+            case DebuggerAgent.ScopeType.Script:
+                title = WebInspector.UIString("Script");
                 break;
             case DebuggerAgent.ScopeType.With:
                 title = WebInspector.UIString("With Block");
                 declarativeScope = false;
                 break;
             case DebuggerAgent.ScopeType.Global:
                 title = WebInspector.UIString("Global");
                 declarativeScope = false;
                 break;
             }
 
+            var subtitle = declarativeScope ? undefined : scope.object.description;
             if (!title || title === subtitle)
                 subtitle = undefined;
 
             var runtimeModel = callFrame.target().runtimeModel;
             if (declarativeScope)
                 var scopeObject = runtimeModel.createScopeRemoteObject(scope.object, new WebInspector.ScopeRef(i, callFrame.id, undefined));
             else
                 var scopeObject = runtimeModel.createRemoteObject(scope.object);
 
             var section = new WebInspector.ObjectPropertiesSection(scopeObject, title, subtitle, emptyPlaceholder, true, extraProperties, WebInspector.ScopeVariableTreeElement);
@@ skipping 45 matching lines @@
     {
         if ("_propertyIdentifier" in this)
             return this._propertyIdentifier;
         var section = this.treeOutline.section;
         this._propertyIdentifier = section.title + ":" + (section.subtitle ? section.subtitle + ":" : "") + this.propertyPath();
         return this._propertyIdentifier;
     },
 
     __proto__: WebInspector.ObjectPropertyTreeElement.prototype
 }