Reduce the number of iterations in some OSR tests by using an explicit %OptimizeOsr().

test/mjsunit/osr-elements-kind.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 70 matching lines @@
   }
   if (%HasExternalPixelElements(obj)) {
     return elements_kind.external_pixel;
   }
 }
 
 function assertKind(expected, obj, name_opt) {
   assertEquals(expected, getKind(obj), name_opt);
 }
 
-// long-running loop forces OSR.
 %NeverOptimizeFunction(construct_smis);
 %NeverOptimizeFunction(construct_doubles);
 %NeverOptimizeFunction(convert_mixed);
-for (var i = 0; i < 1000000; i++) { }
+for (var i = 0; i < 10; i++) { if (i == 5) %OptimizeOsr(); }
 
 // This code exists to eliminate the learning influence of AllocationSites
 // on the following tests.
 var __sequence = 0;
 function make_array_string() {
   this.__sequence = this.__sequence + 1;
   return "/* " + this.__sequence + " */  [0, 0, 0];"
 }
 function make_array() {
   return eval(make_array_string());
@@ skipping 29 matching lines @@
 convert_mixed(construct_doubles(), "three", elements_kind.fast);
 
 smis = construct_smis();
 doubles = construct_doubles();
 convert_mixed(smis, 1, elements_kind.fast);
 convert_mixed(doubles, 1, elements_kind.fast);
 assertTrue(%HaveSameMap(smis, doubles));
 
 // Throw away type information in the ICs for next stress run.
 gc();