[turbofan] escape analysis supports arguments object and rest elements

src/compiler/escape-analysis-reducer.h

Index: src/compiler/escape-analysis-reducer.h
diff --git a/src/compiler/escape-analysis-reducer.h b/src/compiler/escape-analysis-reducer.h
index 01c2ae118bbad23feb69d583c0697e1db4a32726..b91082f1afd4cb6887241365918f429cbbe3684c 100644
--- a/src/compiler/escape-analysis-reducer.h
+++ b/src/compiler/escape-analysis-reducer.h
@@ -26,6 +26,8 @@ class V8_EXPORT_PRIVATE EscapeAnalysisReducer final
 
   Reduction Reduce(Node* node) final;
 
+  void Finalize() override;
+
   // Verifies that all virtual allocation nodes have been dealt with. Run it
   // after this reducer has been applied. Has no effect in release mode.
   void VerifyReplacement() const;
@@ -57,6 +59,7 @@ class V8_EXPORT_PRIVATE EscapeAnalysisReducer final
   // and nodes that do not need a visit from ReduceDeoptState etc.
   BitVector fully_reduced_;
   bool exists_virtual_allocate_;
+  std::set<Node*> arguments_elements_;
   bool compilation_failed_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(EscapeAnalysisReducer);