enable parse test now that dart2js generates correct format

R=sigmund@google.com

Review URL: https://codereview.chromium.org//2383943002 .

test/hello_world/hello_world.js.info.json

@@ -1852,17 +1852,17 @@
       ]
     }
   ],
-  "dump_version": 3,
+  "dump_version": 4,
   "deferredFiles": {},
-  "dump_minor_version": "6",
+  "dump_minor_version": "0",
   "program": {
     "entrypoint": "function/0",
     "size": 10124,
     "dart2jsVersion": null,
-    "compilationMoment": "2016-09-30 13:44:11.847439",
-    "compilationDuration": "0:00:03.717112",
-    "toJsonDuration": 4,
-    "dumpInfoDuration": "0",
+    "compilationMoment": "2016-09-30 16:14:58.038530",
+    "compilationDuration": 2726976,
+    "toJsonDuration": 4000,
+    "dumpInfoDuration": 0,
     "noSuchMethodEnabled": false,
     "minified": false
   }

test/parse_test.dart

@@ -21,11 +21,12 @@ main() {
       expect(program.entrypoint, isNotNull);
       expect(program.size, 10124);
       expect(program.compilationMoment,
-          DateTime.parse("2016-09-30 13:44:11.847439"));
-      expect(program.compilationDuration,
-          new Duration(seconds: 3, microseconds: 717112));
+          DateTime.parse("2016-09-30 16:14:58.038530"));
+      expect(program.compilationDuration, new Duration(microseconds: 2726976));
+      expect(program.toJsonDuration, new Duration(milliseconds: 4));
+      expect(program.dumpInfoDuration, new Duration(seconds: 0));
       expect(program.noSuchMethodEnabled, false);
       expect(program.minified, false);
-    }, skip: "need to update dart2js first");
+    });
   });
 }