Use Variable::binding_needs_init() to determine hole initialization

src/interpreter/bytecode-generator.h

 // Copyright 2015 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_GENERATOR_H_
 #define V8_INTERPRETER_BYTECODE_GENERATOR_H_
 
 #include "src/ast/ast.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/bytecode-label.h"
@@ skipping 97 matching lines @@
   void BuildNamedSuperPropertyLoad(Register receiver, Register home_object,
                                    Register name);
   void BuildKeyedSuperPropertyLoad(Register receiver, Register home_object,
                                    Register key);
 
   void BuildAbort(BailoutReason bailout_reason);
   void BuildThrowIfHole(Handle<String> name);
   void BuildThrowIfNotHole(Handle<String> name);
   void BuildThrowReassignConstant(Handle<String> name);
   void BuildThrowReferenceError(Handle<String> name);
-  void BuildHoleCheckForVariableLoad(VariableMode mode, Handle<String> name);
+  void BuildHoleCheckForVariableLoad(Variable* variable);
   void BuildHoleCheckForVariableAssignment(Variable* variable, Token::Value op);
 
   // Build jump to targets[value], where
   // start_index <= value < start_index + size.
   void BuildIndexedJump(Register value, size_t start_index, size_t size,
                         ZoneVector<BytecodeLabel>& targets);
 
   void VisitGeneratorPrologue();
 
   void VisitArgumentsObject(Variable* variable);
@@ skipping 90 matching lines @@
   ZoneVector<BytecodeLabel> generator_resume_points_;
   Register generator_state_;
   int loop_depth_;
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_GENERATOR_H_