include only stuff you need, part 1: ast.h, ast-value-factory.h.

src/parsing/parameter-initializer-rewriter.h

Index: src/parsing/parameter-initializer-rewriter.h
diff --git a/src/parsing/parameter-initializer-rewriter.h b/src/parsing/parameter-initializer-rewriter.h
index 65c3a3c7ead421907e842914c0814f9604bd315a..a0ff7d2b38d377296a19386cada14bcf56dcaeca 100644
--- a/src/parsing/parameter-initializer-rewriter.h
+++ b/src/parsing/parameter-initializer-rewriter.h
@@ -5,11 +5,14 @@
 #ifndef V8_PARSING_PARAMETER_EXPRESSION_REWRITER_H_
 #define V8_PARSING_PARAMETER_EXPRESSION_REWRITER_H_
 
-#include "src/ast/ast.h"
+#include "src/types.h"
 
 namespace v8 {
 namespace internal {
 
+class Expression;
+class Scope;
+
 // When an extra declaration scope needs to be inserted to account for
 // a sloppy eval in a default parameter or function body, the expressions
 // needs to be in that new inner scope which was added after initial