Fix top-level inference errors for most of the newly failing tests.

tests/language_strong/deferred_not_loaded_check_lib.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 foo(int arg) {}
 
 class C {
   C(int arg) {}
   static foo(int arg) {}
 }
 
 var a;
 
 int get getter => 42;
 
 void set setter(int arg) {
  a = 10;
 }
 
-var list = new List();
+var list = new List<int>();
 
 var closure = (int arg) => 3;