[Interpreter] Templatize AccumulatorUsage and OperandType for bytecode creation.

test/unittests/interpreter/bytecode-peephole-optimizer-unittest.cc

 // Copyright 2016 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/v8.h"
 
 #include "src/factory.h"
 #include "src/interpreter/bytecode-label.h"
 #include "src/interpreter/bytecode-peephole-optimizer.h"
 #include "src/objects-inl.h"
 #include "src/objects.h"
 #include "test/unittests/test-utils.h"
 
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
 class BytecodePeepholeOptimizerTest : public BytecodePipelineStage,
                                       public TestWithIsolateAndZone {
  public:
   BytecodePeepholeOptimizerTest()
-      : peephole_optimizer_(this), last_written_(Bytecode::kIllegal) {}
+      : peephole_optimizer_(this),
+        last_written_(BytecodeNode::Illegal(BytecodeSourceInfo())) {}
   ~BytecodePeepholeOptimizerTest() override {}
 
   void Reset() {
-    last_written_.set_bytecode(Bytecode::kIllegal);
+    last_written_ = BytecodeNode::Illegal(BytecodeSourceInfo());
     write_count_ = 0;
   }
 
   void Write(BytecodeNode* node) override {
     write_count_++;
     last_written_ = *node;
   }
 
   void WriteJump(BytecodeNode* node, BytecodeLabel* label) override {
     write_count_++;
@@ skipping 381 matching lines @@
     CHECK_EQ(last_written().bytecode(), Bytecode::kTestUndetectable);
     CHECK_EQ(last_written().operand_count(), 1);
     CHECK_EQ(last_written().operand(0), reg_operand);
     Reset();
   }
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8