test rename overhaul: step 7 - corelib tests

tests/corelib/collection_from_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 CollectionFromTest {
   static testMain() {
     var set = new Set<int>();
     set.add(1);
     set.add(2);
     set.add(4);
@@ skipping 16 matching lines @@
     initial.forEach(void f(e) { initialSum += e; });
     other.forEach(void f(e) { otherSum += e; });
     Expect.equals(4 + 2 + 1, otherSum);
     Expect.equals(otherSum, initialSum);
   }
 }
 
 main() {
   CollectionFromTest.testMain();
 }