Create ast/ and parsing/ subdirectories and move appropriate files

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parser.h b/src/parsing/parser.h
similarity index 99%
rename from src/parser.h
rename to src/parsing/parser.h
index c912c8f020ca072f5aaa4ac36de57625ccff14a3..b27f5512717f91db6c9fe36fb78e5d52cd2999ac 100644
--- a/src/parser.h
+++ b/src/parsing/parser.h
@@ -2,17 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_PARSER_H_
-#define V8_PARSER_H_
+#ifndef V8_PARSING_PARSER_H_
+#define V8_PARSING_PARSER_H_
 
 #include "src/allocation.h"
-#include "src/ast.h"
+#include "src/ast/ast.h"
+#include "src/ast/scopes.h"
 #include "src/compiler.h"  // TODO(titzer): remove this include dependency
+#include "src/parsing/preparse-data.h"
+#include "src/parsing/preparse-data-format.h"
+#include "src/parsing/preparser.h"
 #include "src/pending-compilation-error-handler.h"
-#include "src/preparse-data.h"
-#include "src/preparse-data-format.h"
-#include "src/preparser.h"
-#include "src/scopes.h"
 
 namespace v8 {
 
@@ -1409,4 +1409,4 @@ DoExpression* ParserTraits::ParseDoExpression(bool* ok) {
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_PARSER_H_
+#endif  // V8_PARSING_PARSER_H_