[Interpreter] Add support for cast operators to bytecode graph builder and

src/interpreter/bytecode-array-builder.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_ARRAY_BUILDER_H_
 #define V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_
 
 #include <vector>
 
 #include "src/ast.h"
@@ skipping 61 matching lines @@
   size_t GetConstantPoolEntry(Handle<Object> object);
 
   // Constant loads to accumulator.
   BytecodeArrayBuilder& LoadLiteral(v8::internal::Smi* value);
   BytecodeArrayBuilder& LoadLiteral(Handle<Object> object);
   BytecodeArrayBuilder& LoadUndefined();
   BytecodeArrayBuilder& LoadNull();
   BytecodeArrayBuilder& LoadTheHole();
   BytecodeArrayBuilder& LoadTrue();
   BytecodeArrayBuilder& LoadFalse();
+  BytecodeArrayBuilder& LoadBooleanConstant(bool value);
 
   // Global loads to the accumulator and stores from the accumulator.
   BytecodeArrayBuilder& LoadGlobal(size_t name_index, int feedback_slot,
                                    LanguageMode language_mode,
                                    TypeofMode typeof_mode);
   BytecodeArrayBuilder& StoreGlobal(size_t name_index, int feedback_slot,
                                     LanguageMode language_mode);
 
   // Load the object at |slot_index| in |context| into the accumulator.
   BytecodeArrayBuilder& LoadContextSlot(Register context, int slot_index);
@@ skipping 155 matching lines @@
                                    BytecodeLabel* label);
   void PatchJump(const ZoneVector<uint8_t>::iterator& jump_target,
                  ZoneVector<uint8_t>::iterator jump_location);
 
   void LeaveBasicBlock();
   void EnsureReturn();
 
   bool OperandIsValid(Bytecode bytecode, int operand_index,
                       uint32_t operand_value) const;
   bool LastBytecodeInSameBlock() const;
+  // Get the previous bytecode in the same block
+  Bytecode GetPreviousBytecodeInSameBlock() const;
+  uint32_t GetRawOperand(int operand_index) const;
+  Handle<Object> GetConstantForIndexOperand(int operand_index);
 
   bool NeedToBooleanCast();
   bool IsRegisterInAccumulator(Register reg);
 
   int BorrowTemporaryRegister();
   void ReturnTemporaryRegister(int reg_index);
   int PrepareForConsecutiveTemporaryRegisters(size_t count);
   void BorrowConsecutiveTemporaryRegister(int reg_index);
   bool TemporaryRegisterIsLive(Register reg) const;
 
@@ skipping 89 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TemporaryRegisterScope);
 };
 
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_