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

src/compiler.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_COMPILER_H_
 #define V8_COMPILER_H_
 
 #include <memory>
 
 #include "src/allocation.h"
-#include "src/ast/ast.h"
 #include "src/bailout-reason.h"
 #include "src/compilation-dependencies.h"
+#include "src/contexts.h"
+#include "src/frames.h"
+#include "src/isolate.h"
+#include "src/objects-inl.h"

[marja, 2016/08/17 12:07:30]

Note that ast.h used to include objects-inl.h via ast-value-factory.h -> api.h
-> objects-inl.h. So I'm not adding an extra link to it.

 #include "src/source-position-table.h"
 #include "src/source-position.h"
 #include "src/zone.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class CompilationInfo;
 class CompilationJob;
@@ skipping 569 matching lines @@
   MUST_USE_RESULT Status SetLastStatus(Status status) {
     last_status_ = status;
     return last_status_;
   }
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_H_