Rename NoSuchMethodException to NoSuchMethodError.

tests/language/naming_test.dart

 // Copyright (c) 2011, 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.
 
 class A {
   A() { NamingTest.count++; }
   foo(a, b) {
     Expect.equals(1, a);
     Expect.equals(2, b);
   }
@@ skipping 497 matching lines @@
   int get foo { return 1; }
   set foo(x) { }
 
   static void main(args) {
     var a = new Naming2Test();
     Expect.throws(
         () => a.foo(2),
         // We check for both exceptions because the exact exception to
         // throw is hard to compute on some browsers.
         // Also, ObjectNotClosureException should probably implement
-        // NoSuchMethodException.
-        (e) => e is ObjectNotClosureException || e is NoSuchMethodException);
+        // NoSuchMethodError.
+        (e) => e is ObjectNotClosureException || e is NoSuchMethodError);
   }
 }
 
 main() {
   NamingTest.testMain();
   Naming1Test.main(null);
   Naming2Test.main(null);
 }