fixes #158, precendence of call and access in new

lib/runtime/dart/_js_helper.js

 var _js_helper;
 (function(exports) {
   'use strict';
   class NoSideEffects extends core.Object {
     NoSideEffects() {
     }
   }
   class NoThrows extends core.Object {
     NoThrows() {
     }
@@ skipping 3721 matching lines @@
   });
   let DeferredLoadCallback = dart.typedef('DeferredLoadCallback', () => dart.functionType(dart.void, []));
   exports.deferredLoadHook = null;
   // Function loadDeferredLibrary: (String) → Future<Null>
   function loadDeferredLibrary(loadId) {
     let urisMap = _foreign_helper.JS_EMBEDDED_GLOBAL('', _js_embedded_names.DEFERRED_LIBRARY_URIS);
     let uris = dart.as(urisMap[loadId], core.List$(core.String));
     let hashesMap = _foreign_helper.JS_EMBEDDED_GLOBAL('', _js_embedded_names.DEFERRED_LIBRARY_HASHES);
     let hashes = dart.as(hashesMap[loadId], core.List$(core.String));
     if (uris == null)
-      return new async.Future$(core.Null).value(null);
-    let indices = new core.List$(core.int).generate(uris[core.$length], i => dart.as(i, core.int));
+      return new (async.Future$(core.Null)).value(null);
+    let indices = new (core.List$(core.int)).generate(uris[core.$length], i => dart.as(i, core.int));
     let isHunkLoaded = _foreign_helper.JS_EMBEDDED_GLOBAL('', _js_embedded_names.IS_HUNK_LOADED);
     let isHunkInitialized = _foreign_helper.JS_EMBEDDED_GLOBAL('', _js_embedded_names.IS_HUNK_INITIALIZED);
     let indicesToLoad = indices[core.$where](i => !isHunkLoaded(hashes[core.$get](i)))[core.$toList]();
     return dart.as(async.Future.wait(dart.as(indicesToLoad[core.$map](i => _loadHunk(uris[core.$get](i))), core.Iterable$(async.Future))).then(_ => {
       let indicesToInitialize = indices[core.$where](i => !isHunkInitialized(hashes[core.$get](i)))[core.$toList]();
       for (let i of indicesToInitialize) {
         let initializer = _foreign_helper.JS_EMBEDDED_GLOBAL('', _js_embedded_names.INITIALIZE_LOADED_HUNK);
         initializer(hashes[core.$get](i));
       }
       let updated = exports._loadedLibraries.add(loadId);
@@ skipping 323 matching lines @@
   exports.jsonEncodeNative = jsonEncodeNative;
   exports.getIsolateAffinityTag = getIsolateAffinityTag;
   exports.LoadLibraryFunctionType = LoadLibraryFunctionType;
   exports.DeferredLoadCallback = DeferredLoadCallback;
   exports.loadDeferredLibrary = loadDeferredLibrary;
   exports.MainError = MainError;
   exports.missingMain = missingMain;
   exports.badMain = badMain;
   exports.mainHasTooManyParameters = mainHasTooManyParameters;
 })(_js_helper || (_js_helper = {}));