Get rid of PreParserIdentifier.

src/scanner.h

 // Copyright 2011 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.
 
 // Features shared by parsing and pre-parsing scanners.
 
 #ifndef V8_SCANNER_H_
 #define V8_SCANNER_H_
 
 #include "src/allocation.h"
@@ skipping 476 matching lines @@
 
   // Scans the input as a template literal
   Token::Value ScanTemplateStart();
   Token::Value ScanTemplateContinuation();
 
   const LiteralBuffer* source_url() const { return &source_url_; }
   const LiteralBuffer* source_mapping_url() const {
     return &source_mapping_url_;
   }
 
+  bool IdentifierIsFutureReserved(const AstRawString* string) const;
   bool IdentifierIsFutureStrictReserved(const AstRawString* string) const;
 
  private:
   // The current and look-ahead token.
   struct TokenDesc {
     Token::Value token;
     Location location;
     LiteralBuffer* literal_chars;
     LiteralBuffer* raw_literal_chars;
   };
@@ skipping 235 matching lines @@
   bool harmony_classes_;
   // Whether we scan TEMPLATE_SPAN and TEMPLATE_TAIL
   bool harmony_templates_;
   // Whether we allow \u{xxxxx}.
   bool harmony_unicode_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCANNER_H_