DevTools: produce javascript outline for javascript classess

third_party/WebKit/LayoutTests/inspector/sources/outline-javascript-4-expected.txt

 Verify javascript outline
 
 
 Running: testAsyncFunction
 Text:
     async function foo() { }
 Outline:
-    foo():0:15
+    async foo():0:15
+
+Running: testAsyncArrowFunction
+Text:
+    var sum = async (x, y) => x + y;
+Outline:
+    async sum(x, y):0:4
 
 Running: testGeneratorFunction
 Text:
     function* foo() { }
 Outline:
+    *foo():0:10
 
 Running: testMismatchBrackets
 Text:
     
     function foo(a, b) {
         if (a > b) {
             return a;
     }
     
     function bar(eee) {
         foo(eee, 2 * eee);
     }
     
 Outline:
     foo(a, b):1:9
     bar(eee):6:9
 
 Running: testSyntaxError
 Text:
     
     function notAGenerator(a, b) {
         yield 10;
     }
 Outline:
     notAGenerator(a, b):1:9