[printing] Improve FixedArray debug printing

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 2550 matching lines @@
       Handle<JSObject> object,
       AllocationSiteCreationContext* site_context);
 
   DECLARE_CAST(JSObject)
 
   // Dispatched behavior.
   void JSObjectShortPrint(StringStream* accumulator);
   DECLARE_PRINTER(JSObject)
   DECLARE_VERIFIER(JSObject)
 #ifdef OBJECT_PRINT
-  void PrintProperties(std::ostream& os);   // NOLINT
-  void PrintElements(std::ostream& os);     // NOLINT
+  bool PrintProperties(std::ostream& os);  // NOLINT
+  bool PrintElements(std::ostream& os);    // NOLINT
 #endif
 #if defined(DEBUG) || defined(OBJECT_PRINT)
   void PrintTransitions(std::ostream& os);  // NOLINT
 #endif
 
   static void PrintElementsTransition(
       FILE* file, Handle<JSObject> object,
       ElementsKind from_kind, Handle<FixedArrayBase> from_elements,
       ElementsKind to_kind, Handle<FixedArrayBase> to_elements);
 
@@ skipping 9119 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_