Remove named function literals from library and tests

tests/language/function_argument_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.
 // Dart test for function passing.
 
 class FunctionArgumentTest {
   static testMe(Function f) {
     return f();
   }
 
   static void testMain() {
     Expect.equals(42, testMe(() { return 42; }));
-    Expect.equals(314, testMe(f() { return 314; }));
-    // Test another unnamed function.
-    Expect.equals(99, testMe(() { return 99; }));
   }
 }
 
 main() {
   FunctionArgumentTest.testMain();
 }