[turbofan] Remove threading of FrameStateBeforeAndAfter.

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/ast.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/liveness-analyzer.h"
@@ skipping 265 matching lines @@
   // Builder that assigns to the {.this_function} internal variable if needed.
   Node* BuildThisFunctionVariable(Variable* this_function_var);
 
   // Builder that assigns to the {new.target} internal variable if needed.
   Node* BuildNewTargetVariable(Variable* new_target_var);
 
   // Builders for variable load and assignment.
   Node* BuildVariableAssignment(Variable* variable, Node* value,
                                 Token::Value op, const VectorSlotPair& slot,
                                 BailoutId bailout_id,
-                                FrameStateBeforeAndAfter& states,
                                 OutputFrameStateCombine framestate_combine =
                                     OutputFrameStateCombine::Ignore());
   Node* BuildVariableDelete(Variable* variable, BailoutId bailout_id,
                             OutputFrameStateCombine framestate_combine);
   Node* BuildVariableLoad(Variable* variable, BailoutId bailout_id,
-                          FrameStateBeforeAndAfter& states,
                           const VectorSlotPair& feedback,
                           OutputFrameStateCombine framestate_combine,
                           TypeofMode typeof_mode = NOT_INSIDE_TYPEOF);
 
   // Builders for property loads and stores.
   Node* BuildKeyedLoad(Node* receiver, Node* key,
                        const VectorSlotPair& feedback);
   Node* BuildNamedLoad(Node* receiver, Handle<Name> name,
                        const VectorSlotPair& feedback);
   Node* BuildKeyedStore(Node* receiver, Node* key, Node* value,
@@ skipping 70 matching lines @@
   // that these are optimizations, disabling any of them should still produce
   // correct graphs.
 
   // Optimization for variable load from global object.
   Node* TryLoadGlobalConstant(Handle<Name> name);
 
   // Optimization for variable load of dynamic lookup slot that is most likely
   // to resolve to a global slot or context slot (inferred from scope chain).
   Node* TryLoadDynamicVariable(Variable* variable, Handle<String> name,
                                BailoutId bailout_id,
-                               FrameStateBeforeAndAfter& states,
                                const VectorSlotPair& feedback,
                                OutputFrameStateCombine combine,
                                TypeofMode typeof_mode);
 
   // Optimizations for automatic type conversion.
   Node* TryFastToBoolean(Node* input);
   Node* TryFastToName(Node* input);
 
   // ===========================================================================
   // The following visitation methods all recursively visit a subtree of the
@@ skipping 204 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_