Keep two empty lines between declarations for cpp files

src/elements-kind.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 65 matching lines @@
                     InitializeFastElementsKindSequence>::type
     fast_elements_kind_sequence = LAZY_INSTANCE_INITIALIZER;
 
 
 ElementsKind GetFastElementsKindFromSequenceIndex(int sequence_number) {
   ASSERT(sequence_number >= 0 &&
          sequence_number < kFastElementsKindCount);
   return fast_elements_kind_sequence.Get()[sequence_number];
 }
 
+
 int GetSequenceIndexFromFastElementsKind(ElementsKind elements_kind) {
   for (int i = 0; i < kFastElementsKindCount; ++i) {
     if (fast_elements_kind_sequence.Get()[i] == elements_kind) {
       return i;
     }
   }
   UNREACHABLE();
   return 0;
 }
 
@@ skipping 34 matching lines @@
       return to_kind == FAST_HOLEY_ELEMENTS;
     case FAST_HOLEY_ELEMENTS:
       return false;
     default:
       return false;
   }
 }
 
 
 } }  // namespace v8::internal