[ignition] desugar GetIterator() via bytecode rather than via AST

src/interpreter/bytecodes.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_BYTECODES_H_
 #define V8_INTERPRETER_BYTECODES_H_
 
 #include <cstdint>
 #include <iosfwd>
 #include <string>
@@ skipping 208 matching lines @@
   /* - [Forward jumps] */                                                      \
   V(Jump, AccumulatorUse::kNone, OperandType::kImm)                            \
   /* - [Start constant jumps] */                                               \
   V(JumpConstant, AccumulatorUse::kNone, OperandType::kIdx)                    \
   /* - [Conditional jumps] */                                                  \
   /* - [Conditional constant jumps] */                                         \
   V(JumpIfNullConstant, AccumulatorUse::kRead, OperandType::kIdx)              \
   V(JumpIfUndefinedConstant, AccumulatorUse::kRead, OperandType::kIdx)         \
   V(JumpIfTrueConstant, AccumulatorUse::kRead, OperandType::kIdx)              \
   V(JumpIfFalseConstant, AccumulatorUse::kRead, OperandType::kIdx)             \
+  V(JumpIfJSReceiverConstant, AccumulatorUse::kRead, OperandType::kIdx)        \
   V(JumpIfNotHoleConstant, AccumulatorUse::kRead, OperandType::kIdx)           \
   /* - [Start ToBoolean jumps] */                                              \
   V(JumpIfToBooleanTrueConstant, AccumulatorUse::kRead, OperandType::kIdx)     \
   V(JumpIfToBooleanFalseConstant, AccumulatorUse::kRead, OperandType::kIdx)    \
   /* - [End constant jumps] */                                                 \
   /* - [Conditional immediate jumps] */                                        \
   V(JumpIfToBooleanTrue, AccumulatorUse::kRead, OperandType::kImm)             \
   V(JumpIfToBooleanFalse, AccumulatorUse::kRead, OperandType::kImm)            \
   /* - [End ToBoolean jumps] */                                                \
   V(JumpIfTrue, AccumulatorUse::kRead, OperandType::kImm)                      \
   V(JumpIfFalse, AccumulatorUse::kRead, OperandType::kImm)                     \
   V(JumpIfNull, AccumulatorUse::kRead, OperandType::kImm)                      \
   V(JumpIfUndefined, AccumulatorUse::kRead, OperandType::kImm)                 \
+  V(JumpIfJSReceiver, AccumulatorUse::kRead, OperandType::kImm)                \
   V(JumpIfNotHole, AccumulatorUse::kRead, OperandType::kImm)                   \
                                                                                \
   /* Complex flow control For..in */                                           \
   V(ForInPrepare, AccumulatorUse::kNone, OperandType::kReg,                    \
     OperandType::kRegOutTriple)                                                \
   V(ForInContinue, AccumulatorUse::kWrite, OperandType::kReg,                  \
     OperandType::kReg)                                                         \
   V(ForInNext, AccumulatorUse::kWrite, OperandType::kReg, OperandType::kReg,   \
     OperandType::kRegPair, OperandType::kIdx)                                  \
   V(ForInStep, AccumulatorUse::kWrite, OperandType::kReg)                      \
@@ skipping 560 matching lines @@
 #undef CONSTEXPR
 
 V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
                                            const Bytecode& bytecode);
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODES_H_