Test (and fix some) invalid assignments.

tests/language/final_super_field_set_test.dart

 // Copyright (c) 2015, 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.
 
-import 'dart:math' as Math;
 import 'package:expect/expect.dart';
 
-main() {
-  Expect.equals(4, new C().m());
+class SuperClass {
+  final field = 0;
+  noSuchMethod(_) => 42;
 }
 
-class C {
-  max(a) => a;
+class Class extends SuperClass {
+  m() {
+    super.field = 87; /// 01: static type warning
+  }
+}
 
-  m() {
-    return max(Math.max(2, 4));
-  }
+main() {
+  new Class().m(); /// 01: continued
 }