[turbofan] Skip data-flow analysis of code entry field.

src/compiler/escape-analysis.h

Index: src/compiler/escape-analysis.h
diff --git a/src/compiler/escape-analysis.h b/src/compiler/escape-analysis.h
index 4ef52574924da3436cbee671b258ab103019e22e..839e54ccd3e5fc4277eac6d1d5c8116d140b60fc 100644
--- a/src/compiler/escape-analysis.h
+++ b/src/compiler/escape-analysis.h
@@ -70,6 +70,7 @@ class EscapeAnalysis {
   CommonOperatorBuilder* common() const { return common_; }
 
   Zone* const zone_;
+  Node* const slot_not_analyzed_;
   CommonOperatorBuilder* const common_;
   EscapeStatusAnalysis* status_analysis_;
   ZoneVector<VirtualState*> virtual_states_;