[turbofan] Add FrameStates before all property accesses.

src/compiler/ast-graph-builder.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_AST_GRAPH_BUILDER_H_
 #define V8_COMPILER_AST_GRAPH_BUILDER_H_
 
 #include "src/ast.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/liveness-analyzer.h"
@@ skipping 237 matching lines @@
   Node* BuildLocalScriptContext(Scope* scope);
   Node* BuildLocalBlockContext(Scope* scope);
 
   // Builder to create an arguments object if it is used.
   Node* BuildArgumentsObject(Variable* arguments);
 
   // Builder to create an array of rest parameters if used
   Node* BuildRestArgumentsArray(Variable* rest, int index);
 
   // Builders for variable load and assignment.
-  Node* BuildVariableAssignment(Variable* var, Node* value, Token::Value op,
-                                BailoutId bailout_id,
-                                OutputFrameStateCombine state_combine =
-                                    OutputFrameStateCombine::Ignore());
+  Node* BuildVariableAssignment(
+      FrameStateBeforeAndAfter& states, Variable* var, Node* value,
+      Token::Value op, BailoutId bailout_id,
+      OutputFrameStateCombine combine = OutputFrameStateCombine::Ignore());
   Node* BuildVariableDelete(Variable* var, BailoutId bailout_id,
-                            OutputFrameStateCombine state_combine);
-  Node* BuildVariableLoad(Variable* var, BailoutId bailout_id,
-                          const VectorSlotPair& feedback,
+                            OutputFrameStateCombine combine);
+  Node* BuildVariableLoad(FrameStateBeforeAndAfter& states, Variable* var,
+                          BailoutId bailout_id, const VectorSlotPair& feedback,
+                          OutputFrameStateCombine combine,
                           ContextualMode mode = CONTEXTUAL);
 
   // Builders for property loads and stores.
   Node* BuildKeyedLoad(Node* receiver, Node* key,
                        const VectorSlotPair& feedback, TypeFeedbackId id);
   Node* BuildNamedLoad(Node* receiver, Handle<Name> name,
                        const VectorSlotPair& feedback, TypeFeedbackId id,
                        ContextualMode mode = NOT_CONTEXTUAL);
   Node* BuildKeyedStore(Node* receiver, Node* key, Node* value,
                         TypeFeedbackId id);
@@ skipping 234 matching lines @@
 
   // Prepare environment to be used as loop header.
   void PrepareForLoop(BitVector* assigned, bool is_osr = false);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_AST_GRAPH_BUILDER_H_