Add VMOptions to optimize tests that need to be (Part I).

tests/language/deopt_hoisted_smi_check_vm_test.dart

Index: tests/language/deopt_hoisted_smi_check_vm_test.dart
===================================================================
--- tests/language/deopt_hoisted_smi_check_vm_test.dart	(revision 24922)
+++ tests/language/deopt_hoisted_smi_check_vm_test.dart	(working copy)
@@ -2,6 +2,7 @@
 // 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.
 // Test deoptimization on an optimistically hoisted smi check.
+// VMOptions=--optimization-counter-threshold=10
 
 import 'package:expect/expect.dart';
 
@@ -25,10 +26,10 @@
 }
 
 main() {
-  for (var i = 0; i < 2000; i++) {
+  for (var i = 0; i < 20; i++) {
     Expect.equals(9, sum(1, 2));
     Expect.equals(0xAB, mask(0xAB));
   }
   Expect.equals(9, sum(1.0, 2.0));  // Passing double causes deoptimization.
   Expect.equals(0xAB, mask(0x1000000AB));
-}
+}