Turn on parallel recompilation for tests that assert optimization status.

test/mjsunit/compiler/parallel-proto-change.js

 // Copyright 2013 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 15 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Flags: --allow-natives-syntax
 // Flags: --parallel-recompilation --parallel-recompilation-delay=50
 
 if (!%IsParallelRecompilationSupported()) {
   print("Parallel recompilation is disabled. Skipping this test.");
   quit();
 }
 
-function assertUnoptimized(fun) {
-  assertTrue(%GetOptimizationStatus(fun) != 1);
-}
-
 function f(foo) { return foo.bar(); }
 
 var o = {};
 o.__proto__ = { __proto__: { bar: function() { return 1; } } };
 
 assertEquals(1, f(o));
 assertEquals(1, f(o));
 
+// Mark for parallel optimization.
 %OptimizeFunctionOnNextCall(f, "parallel");
-assertEquals(1, f(o));     // Trigger optimization.
-assertUnoptimized(f);      // Optimization not yet done.
+// Trigger optimization in the parallel thread.
+assertEquals(1, f(o));
+// While parallel recompilation is running, optimization not yet done.
+assertUnoptimized(f, "no sync");
 // Change the prototype chain during optimization to trigger map invalidation.
 o.__proto__.__proto__ = { bar: function() { return 2; } };
-%CompleteOptimization(f);  // Conclude optimization with...
-assertUnoptimized(f);      // ... bailing out due to map dependency.
+// Optimization eventually bails out due to map dependency.
+assertUnoptimized(f, "sync");
 assertEquals(2, f(o));