enable navbar for export defaults

Conflicts:
	src/services/navigationBar.ts

Author: mhegazy

src/services/navigationBar.ts

@@ -418,10 +418,10 @@ module ts.NavigationBar {
             }
 
             function createFunctionItem(node: FunctionDeclaration) {
-                if (node.name && node.body && node.body.kind === SyntaxKind.Block) {
+                if ((node.name || node.flags & NodeFlags.Default) && node.body && node.body.kind === SyntaxKind.Block) {
                     let childItems = getItemsWorker(sortNodes((<Block>node.body).statements), createChildItem);
 
-                    return getNavigationBarItem(node.name.text,
+                    return getNavigationBarItem((!node.name && node.flags & NodeFlags.Default) ? "default": node.name.text ,
                         ts.ScriptElementKind.functionElement,
                         getNodeModifiers(node),
                         [getNodeSpan(node)],
@@ -452,11 +452,6 @@ module ts.NavigationBar {
             }
 
             function createClassItem(node: ClassDeclaration): ts.NavigationBarItem {
-                if (!node.name) {
-                    // An export default class may be nameless
-                    return undefined;
-                }
-
                 let childItems: NavigationBarItem[];
 
                 if (node.members) {
@@ -475,8 +470,10 @@ module ts.NavigationBar {
                     childItems = getItemsWorker(sortNodes(nodes), createChildItem);
                 }
 
+                var nodeName = !node.name && (node.flags & NodeFlags.Default) ? "default" : node.name.text;
+
                 return getNavigationBarItem(
-                    node.name.text,
+                    nodeName,
                     ts.ScriptElementKind.classElement,
                     getNodeModifiers(node),
                     [getNodeSpan(node)],

tests/cases/fourslash/navbar_exportDefault.ts

@@ -0,0 +1,24 @@
+/// <reference path="fourslash.ts" />
+
+// @Filename: a.ts
+//// {| "itemName": "default", "kind": "class", "parentName": "" |}export default class { }
+
+// @Filename: b.ts
+//// {| "itemName": "C", "kind": "class", "parentName": "" |}export default class C { }
+
+// @Filename: c.ts
+//// {| "itemName": "default", "kind": "function", "parentName": "" |}export default function { }
+
+// @Filename: d.ts
+//// {| "itemName": "Func", "kind": "function", "parentName": "" |}export default function Func { }
+
+test.markers().forEach(marker => {
+    goTo.file(marker.fileName);
+    verify.getScriptLexicalStructureListContains(
+        marker.data.itemName,
+        marker.data.kind,
+        marker.fileName,
+        marker.data.parentName,
+        marker.data.isAdditionalRange,
+        marker.position);
+});