[turbofan] Add the StackSlot operator to turbofan.

src/compiler/instruction-selector.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_INSTRUCTION_SELECTOR_H_
 #define V8_COMPILER_INSTRUCTION_SELECTOR_H_
 
 #include <map>
 
 #include "src/compiler/common-operator.h"
@@ skipping 34 matching lines @@
 class InstructionSelector final {
  public:
   // Forward declarations.
   class Features;
 
   enum SourcePositionMode { kCallSourcePositions, kAllSourcePositions };
 
   InstructionSelector(
       Zone* zone, size_t node_count, Linkage* linkage,
       InstructionSequence* sequence, Schedule* schedule,
-      SourcePositionTable* source_positions,
+      SourcePositionTable* source_positions, Frame* frame,
       SourcePositionMode source_position_mode = kCallSourcePositions,
       Features features = SupportedFeatures());
 
   // Visit code for the entire graph with the included schedule.
   void SelectInstructions();
 
   void StartBlock(RpoNumber rpo);
   void EndBlock(RpoNumber rpo);
   void AddInstruction(Instruction* instr);
 
@@ skipping 198 matching lines @@
   SourcePositionTable* const source_positions_;
   SourcePositionMode const source_position_mode_;
   Features features_;
   Schedule* const schedule_;
   BasicBlock* current_block_;
   ZoneVector<Instruction*> instructions_;
   BoolVector defined_;
   BoolVector used_;
   IntVector virtual_registers_;
   InstructionScheduler* scheduler_;
+  Frame* frame_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_SELECTOR_H_