More tests updated to optimize code (Part 2).

tests/language/mint_arithmetic_test.dart

 // Copyright (c) 2012, 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.
+// VMOptions=--optimization-counter-threshold=10 --no-use-osr
 
 import "package:expect/expect.dart";
 
 // Test arithmetic on 64-bit integers.
 
 test_and_1() {
   try {  // Avoid optimizing this function.
     f(a, b) {
       var s = b;
       var t = a & s;
       return t == b;
     }
     var x = 0xffffffff;
-    for (var i = 0; i < 10000; i++) f(x, 0);
+    for (var i = 0; i < 20; i++) f(x, 0);
     Expect.equals(true, f(x, 0));
     Expect.equals(false, f(x, -1));  // Triggers deoptimization.
   } finally { }
 }
 
 test_and_2() {
   try {  // Avoid optimizing this function.
     f(a, b) {
       return a & b;
     }
     var x = 0xffffffff;
-    for (var i = 0; i < 10000; i++) f(x, x);
+    for (var i = 0; i < 20; i++) f(x, x);
     Expect.equals(x, f(x, x));
     Expect.equals(1234, f(0xffffffff, 1234));
     Expect.equals(0x100000001, f(0x100000001,-1));
     Expect.equals(-0x40000000, f(-0x40000000, -1));
     Expect.equals(0x40000000, f(0x40000000, -1));
     Expect.equals(0x3fffffff, f(0x3fffffff, -1));
   } finally { }
 }
 
 test_xor_1() {
   try {  // Avoid optimizing this function.
     f(a, b) {
       var s = b;
       var t = a ^ s;
       return t;
     }
     var x = 0xffffffff;
-    for (var i = 0; i < 10000; i++) f(x, x);
+    for (var i = 0; i < 20; i++) f(x, x);
     Expect.equals(0, f(x, x));
     Expect.equals(-x - 1, f(x, -1));
     var y  = 0xffffffffffffffff;
     Expect.equals(-y - 1, f(y, -1));  // Triggers deoptimization.
   } finally { }
 }
 
 test_or_1() {
   try {  // Avoid optimizing this function.
     f(a, b) {
       var s = b;
       var t = a | s;
       return t;
     }
     var x = 0xffffffff;
-    for (var i = 0; i < 10000; i++) f(x, x);
+    for (var i = 0; i < 20; i++) f(x, x);
     Expect.equals(x, f(x, x));
     Expect.equals(-1, f(x, -1));
     var y  = 0xffffffffffffffff;
     Expect.equals(-1, f(y, -1));  // Triggers deoptimization.
   } finally { }
 }
 
 test_func(x, y) => (x & y) + 1.0;
 
 test_mint_double_op() {
-  for (var i=0; i<10000; i++) test_func(4294967295, 1);
+  for (var i = 0; i < 20; i++) test_func(4294967295, 1);
   Expect.equals(2.0, test_func(4294967295, 1));
 }
 
 main() {
   for (var i = 0; i < 5; i++) {
     test_and_1();
     test_and_2();
     test_xor_1();
     test_or_1();
     test_mint_double_op();
   }
 }