DevTools: produce javascript outline for javascript classess

third_party/WebKit/LayoutTests/http/tests/inspector/sources-test.js

 var initialize_SourcesTest = function() {
 
 InspectorTest.preloadPanel("sources");
 
 function testSourceMapping(text1, text2, mapping, testToken)
 {
     var originalPosition = text1.indexOf(testToken);
     InspectorTest.assertTrue(originalPosition !== -1);
     var originalLocation = Sources.Formatter.positionToLocation(text1.computeLineEndings(), originalPosition);
     var formattedLocation = mapping.originalToFormatted(originalLocation[0], originalLocation[1]);
@@ skipping 29 matching lines @@
     return promise;
 
     function onChunk(isLastChunk, outlineItems) {
         items.pushAll(outlineItems);
         if (!isLastChunk)
             return;
         InspectorTest.addResult('Text:');
         InspectorTest.addResult(text.split('\n').map(line => '    ' + line).join('\n'));
         InspectorTest.addResult('Outline:');
         for (var item of items)
-            InspectorTest.addResult('    ' + item.name + item.arguments + ':' + item.line + ':' + item.column);
+            InspectorTest.addResult('    ' + item.name + (item.arguments || '') + ':' + item.line + ':' + item.column);
         fulfill();
     }
 }
 
 InspectorTest.dumpSwatchPositions = function(sourceFrame, bookmarkType)
 {
     var textEditor = sourceFrame.textEditor;
     var markers = textEditor.bookmarks(textEditor.fullRange(), bookmarkType);
     for (var i = 0; i < markers.length; i++) {
         var position = markers[i].position();
         var text = markers[i]._marker.widgetNode.firstChild.textContent;
         InspectorTest.addResult("Line " + position.startLine + ", Column " + position.startColumn + ": " + text);
     }
 }
 
 };