[Interpreter] Rename GetCountOperand to GetRegisterCountOperand.

test/cctest/interpreter/generate-bytecode-expectations.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 <fstream>
 #include <iostream>
 
 #include "include/libplatform/libplatform.h"
 #include "include/v8.h"
 
@@ skipping 166 matching lines @@
     stream << 'R';
     if (op_size != OperandSize::kByte) stream << size_tag;
     stream << '(' << register_value.index() << ')';
   } else {
     stream << 'U' << size_tag << '(';
 
     if (Bytecodes::IsImmediateOperandType(op_type)) {
       // We need a cast, otherwise the result is printed as char.
       stream << static_cast<int>(bytecode_iter.GetImmediateOperand(op_index));
     } else if (Bytecodes::IsRegisterCountOperandType(op_type)) {
-      stream << bytecode_iter.GetCountOperand(op_index);
+      stream << bytecode_iter.GetRegisterCountOperand(op_index);
     } else if (Bytecodes::IsIndexOperandType(op_type)) {
       stream << bytecode_iter.GetIndexOperand(op_index);
     } else {
       UNREACHABLE();
     }
 
     stream << ')';
   }
 }
 
@@ skipping 211 matching lines @@
   std::string body;
   if (!ReadFromFileOrStdin(&body, body_filename)) {
     std::cerr << "Could not open '" << body_filename << "'.\n\n";
     PrintUsage(argv[0]);
     return 1;
   }
 
   PrintExpectedSnippet(ParseConstantPoolType(const_pool_type_string), argv[0],
                        body);
 }