anchor.diff:  
   -export([
       new/4,
  -    index/1, id/1, 
  +    index/1, id/1,
       idx_doc_bucket/1,
       fields/1, fields/2,
       regular_fields/1, regular_fields/2,
       inline_fields/1, inline_fields/2,
  -    props/1, add_prop/3, set_props/2, clear_props/1, 
  +    props/1, add_prop/3, set_props/2, clear_props/1,
       postings/1,
       to_mochijson2/3,
       analyze/1,
  
positive.code:     [Field | Fields];
  merge_fields_folder(New, Fields) ->
      [New | Fields].
        
  
  %% @private
  %% Parse a FieldValue into a list of terms.
  
negative.code:     {ok, Schema} = riak_search_config:get_schema(Index),
      {RegularFields, InlineFields} = normalize_fields(Fields, Schema),
      #riak_idx_doc{ index=Index,
                     id=Id,
                     fields=RegularFields,
                     inline_fields=InlineFields,
                     props=Props }.
  
  fields(IdxDoc) -> fields(IdxDoc, all).
  