Refactor dependent code.

src/objects-debug.cc

 // 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.
 
 #include "src/objects.h"
 
 #include "src/bootstrapper.h"
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/macro-assembler.h"
@@ skipping 332 matching lines @@
   CHECK_EQ(0, unused_property_fields());
   CHECK_EQ(Heap::GetStaticVisitorIdForMap(this), visitor_id());
 }
 
 
 void Map::VerifyOmittedMapChecks() {
   if (!FLAG_omit_map_checks_for_leaf_maps) return;
   if (!is_stable() ||
       is_deprecated() ||
       is_dictionary_map()) {
-    CHECK_EQ(0, dependent_code()->number_of_entries(
-        DependentCode::kPrototypeCheckGroup));
+    CHECK(dependent_code()->IsEmpty(DependentCode::kPrototypeCheckGroup));
   }
 }
 
 
 void CodeCache::CodeCacheVerify() {
   VerifyHeapPointer(default_cache());
   VerifyHeapPointer(normal_type_cache());
   CHECK(default_cache()->IsFixedArray());
   CHECK(normal_type_cache()->IsUndefined()
          || normal_type_cache()->IsCodeCacheHashTable());
@@ skipping 944 matching lines @@
 
   // Both are done at the same time.
   CHECK_EQ(new_it.done(), old_it.done());
 }
 
 
 #endif  // DEBUG
 
 }  // namespace internal
 }  // namespace v8