[Interpreter] Fix generate-bytecode-expectations help message.

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 <cstring>
 #include <fstream>
 
 #include "test/cctest/interpreter/bytecode-expectations-printer.h"
 
 #include "include/libplatform/libplatform.h"
@@ skipping 369 matching lines @@
          "  --stdin   Read from standard input instead of file.\n"
          "  --rebaseline  Rebaseline input snippet file.\n"
          "  --no-wrap     Do not wrap the snippet in a function.\n"
          "  --no-execute  Do not execute after compilation.\n"
          "  --test-function-name=foo  "
          "Specify the name of the test function.\n"
          "  --top-level   Process top level code, not the top-level function."
          "  --output=file.name\n"
          "      Specify the output file. If not specified, output goes to "
          "stdout.\n"
-         "  --pool-type=(int|double|string|mixed)\n"
+         "  --pool-type=(number|string|mixed)\n"
          "      Specify the type of the entries in the constant pool "
          "(default: mixed).\n"
          "\n"
          "When using --rebaseline, flags --no-wrap, --no-execute, "
          "--test-function-name\nand --pool-type will be overridden by the "
          "options specified in the input file\nheader.\n\n"
          "Each raw JavaScript file is interpreted as a single snippet.\n\n"
          "This tool is intended as a help in writing tests.\n"
          "Please, DO NOT blindly copy and paste the output "
          "into the test suite.\n";
@@ skipping 38 matching lines @@
       std::cerr << "ERROR: Could not open '" << options.output_filename()
                 << "' for writing.\n";
       return 3;
     }
   }
   std::ostream& output_stream =
       options.write_to_stdout() ? std::cout : output_file_handle;
 
   GenerateExpectationsFile(output_stream, snippet_list, options, argv[0]);
 }