[interpreter] Add CreateFunctionContext bytecode

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 209 matching lines @@
     OperandType::kIdx, OperandType::kFlag8)                                    \
   V(CreateArrayLiteral, AccumulatorUse::kWrite, OperandType::kIdx,             \
     OperandType::kIdx, OperandType::kFlag8)                                    \
   V(CreateObjectLiteral, AccumulatorUse::kWrite, OperandType::kIdx,            \
     OperandType::kIdx, OperandType::kFlag8)                                    \
                                                                                \
   /* Closure allocation */                                                     \
   V(CreateClosure, AccumulatorUse::kWrite, OperandType::kIdx,                  \
     OperandType::kFlag8)                                                       \
                                                                                \
+  /* Context allocation */                                                     \
+  /* TODO(klaasb) rename Idx or add unsigned Imm OperandType? */               \
+  V(CreateFunctionContext, AccumulatorUse::kWrite, OperandType::kIdx)          \
+                                                                               \
   /* Arguments allocation */                                                   \
   V(CreateMappedArguments, AccumulatorUse::kWrite)                             \
   V(CreateUnmappedArguments, AccumulatorUse::kWrite)                           \
   V(CreateRestParameter, AccumulatorUse::kWrite)                               \
                                                                                \
   /* Control Flow */                                                           \
   V(Jump, AccumulatorUse::kNone, OperandType::kImm)                            \
   V(JumpConstant, AccumulatorUse::kNone, OperandType::kIdx)                    \
   V(JumpIfTrue, AccumulatorUse::kRead, OperandType::kImm)                      \
   V(JumpIfTrueConstant, AccumulatorUse::kRead, OperandType::kIdx)              \
@@ skipping 331 matching lines @@
 std::ostream& operator<<(std::ostream& os, const AccumulatorUse& use);
 std::ostream& operator<<(std::ostream& os, const OperandScale& operand_scale);
 std::ostream& operator<<(std::ostream& os, const OperandSize& operand_size);
 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type);
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODES_H_