[promisehook] Pass deferred promise to Before/After callback

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 6588 matching lines @@
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PromiseResolveThenableJobInfo);
 };
 
 class JSPromise;
 
 // Struct to hold state required for PromiseReactionJob.
 class PromiseReactionJobInfo : public Struct {
  public:
-  DECL_ACCESSORS(promise, JSPromise)
   DECL_ACCESSORS(value, Object)
   DECL_ACCESSORS(tasks, Object)
 
   // Check comment in JSPromise for information on what state these
   // deferred fields could be in.
   DECL_ACCESSORS(deferred_promise, Object)
   DECL_ACCESSORS(deferred_on_resolve, Object)
   DECL_ACCESSORS(deferred_on_reject, Object)
 
   DECL_INT_ACCESSORS(debug_id)
   DECL_INT_ACCESSORS(debug_name)
 
   DECL_ACCESSORS(context, Context)
 
-  static const int kPromiseOffset = Struct::kHeaderSize;
-  static const int kValueOffset = kPromiseOffset + kPointerSize;
+  static const int kValueOffset = Struct::kHeaderSize;
   static const int kTasksOffset = kValueOffset + kPointerSize;
   static const int kDeferredPromiseOffset = kTasksOffset + kPointerSize;
   static const int kDeferredOnResolveOffset =
       kDeferredPromiseOffset + kPointerSize;
   static const int kDeferredOnRejectOffset =
       kDeferredOnResolveOffset + kPointerSize;
   static const int kDebugIdOffset = kDeferredOnRejectOffset + kPointerSize;
   static const int kDebugNameOffset = kDebugIdOffset + kPointerSize;
   static const int kContextOffset = kDebugNameOffset + kPointerSize;
   static const int kSize = kContextOffset + kPointerSize;
@@ skipping 5112 matching lines @@
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #include "src/objects/object-macros-undef.h"
 
 #endif  // V8_OBJECTS_H_