Fire 'stack' getter of error objects after GC.

test/cctest/test-heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 
 #include <stdlib.h>
 
 #include "v8.h"
 
 #include "compilation-cache.h"
 #include "execution.h"
 #include "factory.h"
 #include "macro-assembler.h"
@@ skipping 2411 matching lines @@
   InitializeVM();
   v8::HandleScope scope;
   SourceResource* resource = new SourceResource(i::StrDup(source));
   {
     v8::HandleScope scope;
     v8::Handle<v8::String> source_string = v8::String::NewExternal(resource);
     v8::Script::Compile(source_string)->Run();
     CHECK(!resource->IsDisposed());
   }
   HEAP->CollectAllAvailableGarbage();
-  // External source is being retained by the stack trace.
-  CHECK(!resource->IsDisposed());
 
-  CompileRun("error.stack;");
-  HEAP->CollectAllAvailableGarbage();
   // External source has been released.
   CHECK(resource->IsDisposed());
   delete resource;
 }
 
 
 TEST(ReleaseStackTraceData) {
   static const char* source1 = "var error = null;            "
   /* Normal Error */           "try {                        "
                                "  throw new Error();         "
@@ skipping 121 matching lines @@
   // Simulate incremental marking so that the functions are enqueued as
   // code flushing candidates. Then optimize one function. Finally
   // finish the GC to complete code flushing.
   SimulateIncrementalMarking();
   CompileRun("%OptimizeFunctionOnNextCall(g); g(3);");
   HEAP->CollectAllGarbage(Heap::kNoGCFlags);
 
   // Unoptimized code is missing and the deoptimizer will go ballistic.
   CompileRun("g('bozo');");
 }