More tests updated to optimize code (Part 2).

tests/language/if_conversion_vm_test.dart

 // Copyright (c) 2013, 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.
 
 // Test if-convertion pass in the optimizing compiler.
+// VMOptions=--optimization-counter-threshold=10 --no-use-osr
 
 import "package:expect/expect.dart";
 
 f1(i) => (i == 0) ? 0 : 1;
 f2(i) => (i == 0) ? 2 : 3;
 f3(i) => (i == null) ? 0 : 1;
 f4(i) => (i == null) ? 2 : 3;
 
 f5(i) => (i != 0) ? 0 : 1;
 f6(i) => (i != 0) ? 2 : 3;
@@ skipping 17 matching lines @@
 cse(i) {
   final a = i == 0 ? 0 : 1;
   final b = i == 0 ? 2 : 3;
   return a + b;
 }
 
 f17(b) => b ? 0 : 11;
 f18(b) => b ? 2 : 0;
 
 main() {
-  for (var i = 0; i < 10000; i++) {
+  for (var i = 0; i < 20; i++) {
     f1(i);
     f2(i);
     f3(i);
     f4(i);
     f5(i);
     f6(i);
     f7(i);
     f8(i);
     f9(i);
     f10(i);
@@ skipping 49 matching lines @@
   Expect.equals(POWER_OF_2, bigPower(12));
 
   Expect.equals(2, cse(0));
   Expect.equals(4, cse(1));
 
   Expect.equals(11, f17(false));
   Expect.equals(0, f17(true));
 
   Expect.equals(0, f18(false));
   Expect.equals(2, f18(true));
-}
+}