anchor.diff:          (   mapEntryList COMMA?
           |   COLON
           )
  -        rbrack
  +        RBRACK
       ;
   
   mapEntryList
  
positive.code:     ;
  
  elementValueArrayInitializer
      :   LBRACK (elementValue (COMMA elementValue)*)? (COMMA)? rbrack
      ;
  
  // STATEMENTS / BLOCKS
  
negative.code:         { require(false, "Missing ')'", -1); }
      ;
  
  nls
      :   NL*
      ;
  