[tests] Fix assertUnoptimized() when --deopt-every-n-times flag is used.

test/mjsunit/mjsunit.js

 // Copyright 2008 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 482 matching lines @@
   }
 
   assertUnoptimized = function assertUnoptimized(fun, sync_opt, name_opt) {
     if (sync_opt === undefined) sync_opt = "";
     var opt_status = OptimizationStatus(fun, sync_opt);
     // Tests that use assertOptimized() do not make sense if --always-opt
     // option is provided. Such tests must add --no-always-opt to flags comment.
     assertFalse((opt_status & V8OptimizationStatus.kAlwaysOptimize) !== 0,
                 "test does not make sense with --always-opt");
     assertTrue((opt_status & V8OptimizationStatus.kIsFunction) !== 0, name_opt);
+    if ((opt_status & V8OptimizationStatus.kMaybeDeopted) !== 0) {
+      // When --deopt-every-n-times flag is specified it's no longer guaranteed
+      // that particular function is still deoptimized, so keep running the test
+      // to stress test the deoptimizer.
+      return;
+    }
     assertFalse((opt_status & V8OptimizationStatus.kOptimized) !== 0, name_opt);
   }
 
   assertOptimized = function assertOptimized(fun, sync_opt, name_opt) {
     if (sync_opt === undefined) sync_opt = "";
     var opt_status = OptimizationStatus(fun, sync_opt);
     // Tests that use assertOptimized() do not make sense if --no-crankshaft
     // option is provided. Such tests must add --crankshaft to flags comment.
     assertFalse((opt_status & V8OptimizationStatus.kNeverOptimize) !== 0,
                 "test does not make sense with --no-crankshaft");
@@ skipping 52 matching lines @@
 
   isTurboFanned = function isTurboFanned(fun) {
     var opt_status = OptimizationStatus(fun, "");
     assertTrue((opt_status & V8OptimizationStatus.kIsFunction) !== 0,
                "not a function");
     return (opt_status & V8OptimizationStatus.kOptimized) !== 0 &&
            (opt_status & V8OptimizationStatus.kTurboFanned) !== 0;
   }
 
 })();