Run Crankshaft on a separate thread.

test/cctest/test-heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 
 #include <stdlib.h>
 
 #include "v8.h"
 
 #include "execution.h"
 #include "factory.h"
 #include "macro-assembler.h"
 #include "global-handles.h"
@@ skipping 992 matching lines @@
     count++;
     object = JSFunction::cast(object)->next_function_link();
   }
   return count;
 }
 
 
 TEST(TestInternalWeakLists) {
   v8::V8::Initialize();
 
+  // Be deterministic.
+  i::FLAG_optimize_in_parallel = false;
+
   static const int kNumTestContexts = 10;
 
   v8::HandleScope scope;
   v8::Persistent<v8::Context> ctx[kNumTestContexts];
 
   CHECK_EQ(0, CountGlobalContexts());
 
   // Create a number of global contests which gets linked together.
   for (int i = 0; i < kNumTestContexts; i++) {
     ctx[i] = v8::Context::New();
@@ skipping 762 matching lines @@
   CHECK(marking->IsComplete());
   HEAP->CollectAllGarbage(Heap::kNoGCFlags);
   CHECK(marking->IsStopped());
 
   // Count number of live transitions after marking.  Note that one transition
   // is left, because 'o' still holds an instance of one transition target.
   int transitions_after = CountMapTransitions(root->map());
   CompileRun("%DebugPrint(root);");
   CHECK_EQ(1, transitions_after);
 }