Run Crankshaft on a separate thread.

test/cctest/test-threads.cc

 // 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 108 matching lines @@
 
       Thread::YieldCPU();
     } while (true);
   }
 };
 
 
 TEST(JSFunctionResultCachesInTwoThreads) {
   v8::V8::Initialize();
 
-  ThreadA threadA;
-  ThreadB threadB;
+  {
+    v8::Unlocker unlock;
 
-  threadA.Start();
-  threadB.Start();
+    ThreadA threadA;
+    ThreadB threadB;
 
-  threadA.Join();
-  threadB.Join();
+    threadA.Start();
+    threadB.Start();
+
+    threadA.Join();
+    threadB.Join();
+  }
 
   CHECK_EQ(DONE, turn);
 }
 
 class ThreadIdValidationThread : public v8::internal::Thread {
  public:
   ThreadIdValidationThread(i::Thread* thread_to_start,
                            i::List<i::ThreadId>* refs,
                            unsigned int thread_no,
                            i::Semaphore* semaphore)
@@ skipping 52 matching lines @@
     Join();
   }
 };
 
 
 TEST(ThreadJoinSelf) {
   ThreadC thread;
   thread.Start();
   thread.Join();
 }