[Interpreter] Move jump processing to bytecode array writer.

src/interpreter/bytecode-register-optimizer.h

 // Copyright 2016 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_INTERPRETER_BYTECODE_REGISTER_OPTIMIZER_H_
 #define V8_INTERPRETER_BYTECODE_REGISTER_OPTIMIZER_H_
 
 #include "src/interpreter/bytecode-pipeline.h"
 
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
 // An optimization stage for eliminating unnecessary transfers between
 // registers. The bytecode generator uses temporary registers
 // liberally for correctness and convenience and this stage removes
 // transfers that are not required and preserves correctness.
 class BytecodeRegisterOptimizer final : public BytecodePipelineStage,
                                         public TemporaryRegisterObserver,
                                         public ZoneObject {
  public:
   BytecodeRegisterOptimizer(Zone* zone,
                             TemporaryRegisterAllocator* register_allocator,
                             int parameter_count,
                             BytecodePipelineStage* next_stage);
   virtual ~BytecodeRegisterOptimizer() {}
 
   // BytecodePipelineStage interface.
-  size_t FlushForOffset() override;
-  void FlushBasicBlock() override;
   void Write(BytecodeNode* node) override;
+  void WriteJump(BytecodeNode* node, BytecodeLabel* label) override;
+  void BindLabel(BytecodeLabel* label) override;
+  void BindLabel(const BytecodeLabel& target, BytecodeLabel* label) override;
+  Handle<BytecodeArray> ToBytecodeArray(
+      int fixed_register_count, int parameter_count,
+      Handle<FixedArray> handler_table) override;
 
  private:
   static const uint32_t kInvalidEquivalenceId = kMaxUInt32;
 
   class RegisterInfo;
 
   // TemporaryRegisterObserver interface.
   void TemporaryRegisterFreeEvent(Register reg) override;
 
   // Helpers for BytecodePipelineStage interface.
@@ skipping 98 matching lines @@
   Zone* zone_;
 
   DISALLOW_COPY_AND_ASSIGN(BytecodeRegisterOptimizer);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_REGISTER_OPTIMIZER_H_