Fix test-random test.

test/cctest/test-random.cc

 // 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 73 matching lines @@
   CompileRun("function f() { return Math.random(); }");
 
   Object* symbol = FACTORY->LookupAsciiSymbol("f")->ToObjectChecked();
   MaybeObject* fun_object =
       context->global()->GetProperty(String::cast(symbol));
   Handle<JSFunction> fun(JSFunction::cast(fun_object->ToObjectChecked()));
 
   // Optimize function.
   Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   Execution::Call(fun, global, 0, NULL, &has_pending_exception);
-  fun->MarkForLazyRecompilation();
+  if (!fun->IsOptimized()) fun->MarkForLazyRecompilation();
 
   // Test with some random values.
   TestSeeds(fun, context, 0xC0C0AFFE, 0x31415926);
   TestSeeds(fun, context, 0x01020304, 0xFFFFFFFF);
   TestSeeds(fun, context, 0x00000001, 0x00000000);
 
   // Test that we bail out to runtime when seeds are uninitialized (zeros).
   SetSeeds(seeds, 0, 0);
   Handle<Object> value =
       Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   CHECK(value->IsHeapNumber());
   CHECK(fun->IsOptimized());
   double crankshaft_value = HeapNumber::cast(*value)->value();
   CHECK_NE(0.0, crankshaft_value);
 }