Revert "Remove flag track-allocation-sites."

test/mjsunit/elements-transition-hoisting.js

 // Copyright 2012 the V8 project authors. All rights reserved.
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 // 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.
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 //       from this software without specific prior written permission.
 //
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 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --allow-natives-syntax --smi-only-arrays
-// Flags: --nostress-opt
+// Flags: --allow-natives-syntax --smi-only-arrays --notrack-allocation-sites
+
+// No tracking of allocation sites because it interfers with the semantics
+// the test is trying to ensure.
 
 // Ensure that ElementsKind transitions in various situations are hoisted (or
 // not hoisted) correctly, don't change the semantics programs and don't trigger
 // deopt through hoisting in important situations.
 
 support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6));
 
 if (support_smi_only_arrays) {
   print("Tests include smi-only arrays.");
 } else {
   print("Tests do NOT include smi-only arrays.");
 }
 
-function test_wrapper() {
+if (support_smi_only_arrays) {
   // Make sure that a simple elements array transitions inside a loop before
   // stores to an array gets hoisted in a way that doesn't generate a deopt in
   // simple cases.}
   function testDoubleConversion4(a) {
     var object = new Object();
     a[0] = 0;
     var count = 3;
     do {
       a[0] = object;
     } while (--count > 0);
@@ skipping 176 matching lines @@
   testStraightLineDupeElinination(new Array(5),0,.5,0,0,0);
   testStraightLineDupeElinination(new Array(5),0,0,.5,0,0);
   testStraightLineDupeElinination(new Array(5),0,0,0,.5,0);
   testStraightLineDupeElinination(new Array(5),0,0,0,0,.5);
   %OptimizeFunctionOnNextCall(testStraightLineDupeElinination);
   testStraightLineDupeElinination(new Array(5),0,0,0,0,0);
   testStraightLineDupeElinination(new Array(5),0,0,0,0,0);
   assertOptimized(testStraightLineDupeElinination);
   %ClearFunctionTypeFeedback(testStraightLineDupeElinination);
 }
-
-if (support_smi_only_arrays) {
-  // The test is called in a test wrapper that has type feedback cleared to
-  // prevent the influence of allocation-sites, which learn from transitions.
-  test_wrapper();
-  %ClearFunctionTypeFeedback(test_wrapper);
-}