Cleanup the default Isolate's entry stack.

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 864bd493a3afd7980d4f79349d07264adbf1343f..89f7922d97b087ce453cf4c1d93182f6d018d511 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -1960,6 +1960,14 @@ void Isolate::SetIsolateThreadLocals(Isolate* isolate,
 Isolate::~Isolate() {
   TRACE_ISOLATE(destructor);
 
+  // Cleanup entry stack for default isolate
+  ASSERT(entry_stack_ == NULL || this == default_isolate_);
+  ASSERT(entry_stack_ == NULL || entry_stack_->previous_item == NULL);
+  if (entry_stack_ != NULL) {

[Jakob Kummerow, 2013/07/02 07:15:02]

You don't need this condition; "delete" is safe to be called on NULL pointers.

+    delete entry_stack_;
+    entry_stack_ = NULL;
+  }
+
   delete[] assembler_spare_buffer_;
   assembler_spare_buffer_ = NULL;