test rename overhaul: step 5 - frog and leg tests

frog/tests/leg_only/phi_elimination_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.
 
 void bar() {
   var a = 0;
   var c = 0;
 
   if (a == 0) c = a++;
   else c = a--;
@@ skipping 32 matching lines @@
   }
 
   Expect.equals(0, a);
   Expect.equals(1, c);
 }
 
 main() {
   foo();
   bar();
 }