[Interpreter] Adds support for const/let variables to interpreter.

src/interpreter/bytecode-array-builder.cc

 // 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.
 
 #include "src/interpreter/bytecode-array-builder.h"
 
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
@@ skipping 789 matching lines @@
   }
 }
 
 
 // static
 Bytecode BytecodeArrayBuilder::GetJumpWithToBoolean(Bytecode jump_bytecode) {
   switch (jump_bytecode) {
     case Bytecode::kJump:
     case Bytecode::kJumpIfNull:
     case Bytecode::kJumpIfUndefined:
+    case Bytecode::kJumpIfHole:
+    case Bytecode::kJumpIfNotHole:
       return jump_bytecode;
     case Bytecode::kJumpIfTrue:
       return Bytecode::kJumpIfToBooleanTrue;
     case Bytecode::kJumpIfFalse:
       return Bytecode::kJumpIfToBooleanFalse;
     default:
       UNREACHABLE();
   }
   return static_cast<Bytecode>(-1);
 }
@@ skipping 142 matching lines @@
 BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfUndefined(
     BytecodeLabel* label) {
   return OutputJump(Bytecode::kJumpIfUndefined, label);
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::StackCheck() {
   Output(Bytecode::kStackCheck);
   return *this;
 }
 
+BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfHole(BytecodeLabel* label) {
+  return OutputJump(Bytecode::kJumpIfHole, label);
+}
+
+BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfNotHole(
+    BytecodeLabel* label) {
+  return OutputJump(Bytecode::kJumpIfNotHole, label);
+}
+
 BytecodeArrayBuilder& BytecodeArrayBuilder::Throw() {
   Output(Bytecode::kThrow);
   exit_seen_in_block_ = true;
   return *this;
 }
 
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::ReThrow() {
   Output(Bytecode::kReThrow);
   exit_seen_in_block_ = true;
@@ skipping 701 matching lines @@
 }
 
 // static
 bool BytecodeArrayBuilder::FitsInReg16OperandUntranslated(Register value) {
   return value.is_short_operand();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8