More --use_slow_path tests, add that VMOption to two tests.

tests/language/src/ImplicitClosureTest.dart

Index: tests/language/src/ImplicitClosureTest.dart
===================================================================
--- tests/language/src/ImplicitClosureTest.dart	(revision 1877)
+++ tests/language/src/ImplicitClosureTest.dart	(working copy)
@@ -2,6 +2,8 @@
 // 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 program for testing invocation of implicit closures.
+// VMOptions=

[regis, 2011/11/28 23:25:47]

Is this line necessary?

[srdjan, 2011/11/28 23:29:30]

Yes, so that we run it also with no VM options.

+// VMOptions=--use_slow_path
 
 class First {
   First(this.i) {}