Create ast/ and parsing/ subdirectories and move appropriate files

src/parsing/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_
+#ifndef V8_PARSING_SCANNER_H_
+#define V8_PARSING_SCANNER_H_
 
 #include "src/allocation.h"
 #include "src/base/logging.h"
 #include "src/char-predicates.h"
 #include "src/globals.h"
 #include "src/hashmap.h"
 #include "src/list.h"
-#include "src/token.h"
+#include "src/parsing/token.h"
 #include "src/unicode.h"
 #include "src/unicode-decoder.h"
 #include "src/utils.h"
 
 namespace v8 {
 namespace internal {
 
 
 class AstRawString;
 class AstValueFactory;
@@ skipping 734 matching lines @@
   // inside multiline comments.
   bool has_line_terminator_before_next_;
   // Whether there is a multi-line comment that contains a
   // line-terminator after the current token, and before the next.
   bool has_multiline_comment_before_next_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_SCANNER_H_
+#endif  // V8_PARSING_SCANNER_H_