Objects printing improved a bit.

src/objects.cc

 // Copyright 2013 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.
 
 #include "src/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 1927 matching lines @@
       Cell::cast(this)->value()->ShortPrint(&accumulator);
       os << accumulator.ToCString().get();
       break;
     }
     case PROPERTY_CELL_TYPE: {
       os << "PropertyCell for ";
       HeapStringAllocator allocator;
       StringStream accumulator(&allocator);
       PropertyCell* cell = PropertyCell::cast(this);
       cell->value()->ShortPrint(&accumulator);
-      os << accumulator.ToCString().get() << " " << cell->property_details();
+      os << accumulator.ToCString().get();
       break;
     }
     case WEAK_CELL_TYPE: {
       os << "WeakCell for ";
       HeapStringAllocator allocator;
       StringStream accumulator(&allocator);
       WeakCell::cast(this)->value()->ShortPrint(&accumulator);
       os << accumulator.ToCString().get();
       break;
     }
@@ skipping 12720 matching lines @@
 // class. This requires us to have the template functions put
 // together, so even though this function belongs in objects-debug.cc,
 // we keep it here instead to satisfy certain compilers.
 #ifdef OBJECT_PRINT
 template <typename Derived, typename Shape, typename Key>
 void Dictionary<Derived, Shape, Key>::Print(std::ostream& os) {  // NOLINT
   int capacity = this->Capacity();
   for (int i = 0; i < capacity; i++) {
     Object* k = this->KeyAt(i);
     if (this->IsKey(k)) {
-      os << " ";
+      os << "\n   ";
       if (k->IsString()) {
         String::cast(k)->StringPrint(os);
       } else {
         os << Brief(k);
       }
-      os << ": " << Brief(this->ValueAt(i)) << " " << this->DetailsAt(i)
-         << "\n";
+      os << ": " << Brief(this->ValueAt(i)) << " " << this->DetailsAt(i);
     }
   }
 }
 #endif
 
 
 template<typename Derived, typename Shape, typename Key>
 void Dictionary<Derived, Shape, Key>::CopyValuesTo(FixedArray* elements) {
   int pos = 0;
   int capacity = this->Capacity();
@@ skipping 3305 matching lines @@
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 
 }  // namespace internal
 }  // namespace v8