Extract scanner base/JS/JSON and move base and JS to scanner-base.

src/parser.h

 // Copyright 2010 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
@@ skipping 664 matching lines @@
   FunctionLiteral* ParseFunctionLiteral(Handle<String> var_name,
                                         int function_token_position,
                                         FunctionLiteralType type,
                                         bool* ok);
 
 
   // Magical syntax support.
   Expression* ParseV8Intrinsic(bool* ok);
 
   INLINE(Token::Value peek()) { return scanner_.peek(); }
-  INLINE(Token::Value Next()) { return scanner_.Next(); }
+  INLINE(Token::Value Next()) { return scanner_.NextCheckStack(); }
   INLINE(void Consume(Token::Value token));
   void Expect(Token::Value token, bool* ok);
   bool Check(Token::Value token);
   void ExpectSemicolon(bool* ok);
 
   Handle<String> GetSymbol(bool* ok);
 
   // Get odd-ball literals.
   Literal* GetLiteralUndefined();
   Literal* GetLiteralTheHole();
@@ skipping 57 matching lines @@
                                 Handle<Object> second);
 
   // Generic AST generator for throwing errors from compiled code.
   Expression* NewThrowError(Handle<String> constructor,
                             Handle<String> type,
                             Vector< Handle<Object> > arguments);
 
   ZoneList<Handle<String> > symbol_cache_;
 
   Handle<Script> script_;
-  Scanner scanner_;
+  V8JavaScriptScanner scanner_;
 
   Scope* top_scope_;
   int with_nesting_level_;
 
   TemporaryScope* temp_scope_;
   Mode mode_;
 
   Target* target_stack_;  // for break, continue statements
   bool allow_natives_syntax_;
   v8::Extension* extension_;
@@ skipping 71 matching lines @@
   // A JSON array doesn't allow leaving out values from the sequence, nor does
   // it allow a terminal comma, like a JavaScript array does.
   Handle<Object> ParseJsonArray();
 
   // Mark that a parsing error has happened at the current token, and
   // return a null handle. Primarily for readability.
   Handle<Object> ReportUnexpectedToken() { return Handle<Object>::null(); }
   // Converts the currently parsed literal to a JavaScript String.
   Handle<String> GetString();
 
-  Scanner scanner_;
+  JsonScanner scanner_;
 };
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_