Revert "Make GCC happy again." and "Initial switch to Chromium-style CHECK_* and DCHECK_* macros.".

src/objects-inl.h

 // 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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 2933 matching lines @@
       if (current_hash > hash) {
         if (out_insertion_index != NULL) *out_insertion_index = sorted_index;
         return T::kNotFound;
       }
       if (current_hash == hash && entry->Equals(name)) return sorted_index;
     }
     if (out_insertion_index != NULL) *out_insertion_index = len;
     return T::kNotFound;
   } else {
     DCHECK(len >= valid_entries);
-    DCHECK_NULL(out_insertion_index);  // Not supported here.
+    DCHECK_EQ(NULL, out_insertion_index);  // Not supported here.
     for (int number = 0; number < valid_entries; number++) {
       Name* entry = array->GetKey(number);
       uint32_t current_hash = entry->Hash();
       if (current_hash == hash && entry->Equals(name)) return number;
     }
     return T::kNotFound;
   }
 }
 
 
@@ skipping 4630 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_