Create ast/ and parsing/ subdirectories and move appropriate files

src/ast/prettyprinter.h

Index: src/ast/prettyprinter.h
diff --git a/src/prettyprinter.h b/src/ast/prettyprinter.h
similarity index 97%
rename from src/prettyprinter.h
rename to src/ast/prettyprinter.h
index 0793d33e74ad6c501cccd8bc00552050fc22310a..808f702c4d5776af9c3da4f6bb0c92eeddc82eb1 100644
--- a/src/prettyprinter.h
+++ b/src/ast/prettyprinter.h
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_PRETTYPRINTER_H_
-#define V8_PRETTYPRINTER_H_
+#ifndef V8_AST_PRETTYPRINTER_H_
+#define V8_AST_PRETTYPRINTER_H_
 
 #include "src/allocation.h"
-#include "src/ast.h"
+#include "src/ast/ast.h"
 
 namespace v8 {
 namespace internal {
@@ -136,4 +136,4 @@ class AstPrinter: public PrettyPrinter {
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_PRETTYPRINTER_H_
+#endif  // V8_AST_PRETTYPRINTER_H_