[Interpreter] Refactor bytecode generator test suite.

test/cctest/interpreter/bytecode-expectations-printer.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 "test/cctest/interpreter/bytecode-expectations-printer.h"
 
 #include <iostream>
 #include <vector>
 
 #include "include/libplatform/libplatform.h"
@@ skipping 206 matching lines @@
       return;
   }
 }
 
 void BytecodeExpectationsPrinter::PrintFrameSize(
     std::ostream& stream, i::Handle<i::BytecodeArray> bytecode_array) const {
   const int kPointerSize = sizeof(void*);
   int frame_size = bytecode_array->frame_size();
 
   DCHECK_EQ(frame_size % kPointerSize, 0);
-  stream << "frame size: " << frame_size / kPointerSize;
-  if (frame_size > 0) stream << "  # in multiples of sizeof(void*)";
-  stream << "\nparameter count: " << bytecode_array->parameter_count() << '\n';
+  stream << "frame size: " << frame_size / kPointerSize
+         << "\nparameter count: " << bytecode_array->parameter_count() << '\n';
 }
 
 void BytecodeExpectationsPrinter::PrintBytecodeSequence(
     std::ostream& stream, i::Handle<i::BytecodeArray> bytecode_array) const {
-  stream << "bytecodes: [\n";
+  stream << "bytecode array length: " << bytecode_array->length()
+         << "\nbytecodes: [\n";
   BytecodeArrayIterator bytecode_iter(bytecode_array);
   for (; !bytecode_iter.done(); bytecode_iter.Advance()) {
     stream << "  ";
     PrintBytecode(stream, bytecode_iter, bytecode_array->parameter_count());
     stream << ",\n";
   }
   stream << "]\n";
 }
 
 void BytecodeExpectationsPrinter::PrintConstantPool(
@@ skipping 59 matching lines @@
 
   stream << "---\n";
   PrintCodeSnippet(stream, snippet);
   PrintBytecodeArray(stream, bytecode_array);
   stream << '\n';
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8