Include only stuff you need, part 7: Fix scopes.h -> ast.h.

src/parsing/parser-base.h

 // Copyright 2012 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.
 
 #ifndef V8_PARSING_PARSER_BASE_H
 #define V8_PARSING_PARSER_BASE_H
 
+#include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/bailout-reason.h"
 #include "src/base/hashmap.h"
 #include "src/globals.h"
 #include "src/messages.h"
 #include "src/parsing/expression-classifier.h"
 #include "src/parsing/func-name-inferrer.h"
 #include "src/parsing/scanner.h"
 #include "src/parsing/token.h"
 
@@ skipping 3943 matching lines @@
     has_seen_constructor_ = true;
     return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_BASE_H