update V8 to TOT snapshot branch
diff --git a/src/frames.cc b/src/frames.cc
index 0550740..06896ea 100644
--- a/src/frames.cc
+++ b/src/frames.cc
@@ -410,12 +410,7 @@
 
 
 Code* ExitFrame::code() const {
-  Object* code = code_slot();
-  if (code->IsSmi()) {
-    return Heap::debugger_statement_code();
-  } else {
-    return Code::cast(code);
-  }
+  return Code::cast(code_slot());
 }