Revert "Remove flag track-allocation-sites."

test/mjsunit/allocation-site-info.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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 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Flags: --allow-natives-syntax --smi-only-arrays --expose-gc
-// Flags: --noalways-opt
+// Flags: --track-allocation-sites --noalways-opt
 
 // Test element kind of objects.
 // Since --smi-only-arrays affects builtins, its default setting at compile
 // time sticks if built with snapshot.  If --smi-only-arrays is deactivated
 // by default, only a no-snapshot build actually has smi-only arrays enabled
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
 // Reset the GC stress mode to be off. Needed because AllocationMementos only
 // live for one gc, so a gc that happens in certain fragile areas of the test
@@ skipping 447 matching lines @@
     obj[0][0] = 3.5;
     obj[1][0][0] = "goodbye";
     assertKind(elements_kind.fast_double, obj[0]);
     assertKind(elements_kind.fast, obj[1][0]);
 
     obj = get_deep_nested_literal();
     assertKind(elements_kind.fast_double, obj[0]);
     assertKind(elements_kind.fast, obj[1][0]);
   })();
 }