[inspector] introduced v8::debug::EntriesPreview for inspector

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 10657 matching lines @@
   DECL_ACCESSORS(table, Object)
 
   // [next]: linked list of encountered weak maps during GC.
   DECL_ACCESSORS(next, Object)
 
   static void Initialize(Handle<JSWeakCollection> collection, Isolate* isolate);
   static void Set(Handle<JSWeakCollection> collection, Handle<Object> key,
                   Handle<Object> value, int32_t hash);
   static bool Delete(Handle<JSWeakCollection> collection, Handle<Object> key,
                      int32_t hash);
+  static Handle<JSArray> GetEntries(Handle<JSWeakCollection> holder,
+                                    int max_entries);
 
   static const int kTableOffset = JSObject::kHeaderSize;
   static const int kNextOffset = kTableOffset + kPointerSize;
   static const int kSize = kNextOffset + kPointerSize;
 
   // Visiting policy defines whether the table and next collection fields
   // should be visited or not.
   enum BodyVisitingPolicy { kVisitStrong, kVisitWeak };
 
   // Iterates the function object according to the visiting policy.
@@ skipping 932 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_