Experimental scanner: Remove the re2c version for real.

src/lexer/experimental-scanner.h

-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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-
-#ifndef V8_LEXER_EXPERIMENTAL_SCANNER_H
-#define V8_LEXER_EXPERIMENTAL_SCANNER_H
-
-#include <vector>
-
-#include "flags.h"
-#include "token.h"
-
-namespace v8 {
-namespace internal {
-
-class EvenMoreExperimentalScanner;
-class PushScanner;
-
-class ExperimentalScanner {
- public:
-  struct Location {
-    Location(int b, int e) : beg_pos(b), end_pos(e) { }
-    Location() : beg_pos(0), end_pos(0) { }
-
-    bool IsValid() const {
-      return beg_pos >= 0 && end_pos >= beg_pos;
-    }
-
-    static Location invalid() { return Location(-1, -1); }
-
-    int beg_pos;
-    int end_pos;
-  };
-
-  struct SavedToken {
-    int beg, end;
-    Token::Value value;
-  };
-
-  ExperimentalScanner(const char* fname,
-                      bool read_all_at_once,
-                      Isolate* isolate,
-                      int repeat);
-  ~ExperimentalScanner();
-
-  Token::Value Next();
-  Token::Value current_token();
-  Location location();
-
-  void Record(v8::internal::Token::Value token, int beg_pos, int end_pos);
-
- private:
-  void FillTokens();
-  static const int BUFFER_SIZE = 256;
-  std::vector<SavedToken> token_;
-  size_t current_;
-  size_t fetched_;
-  FILE* file_;
-  PushScanner* scanner_;
-  bool read_all_at_once_;
-  bool already_pushed_;
-  const v8::internal::byte* source_;
-  int length_;
-};
-
-const byte* ReadFile(const char* name, Isolate* isolate, int* size, int repeat);
-
-} }  // namespace v8::internal
-
-#endif