anchor.diff:  ;
   // R435
   typeParamDefStmt : 
  -keyINTEGER   (   kindSelector   )?    COMMA   typeParamAttrSpec  DOUBLECOLON 
  +INTEGER   (   kindSelector   )?    COMMA   typeParamAttrSpec  DOUBLECOLON 
   typeParamDeclList
  +Newline
   ;
   // R434
   sequenceStmt : 
  -keySEQUENCE
  +SEQUENCE
  +Newline
   ;
   // R727
   intExpr : 
  
positive.code: ;
  // R712
  level4Expr : 
      level3Expr ( relOp  level3Expr   )? 
  ;
  // R713
  relOp : 
   PERIOD keyEQ PERIOD 
  |  PERIOD keyNE PERIOD 
  |  PERIOD keyLT PERIOD 
  |  PERIOD keyLE PERIOD 
  |  PERIOD keyGT PERIOD 
  |  PERIOD keyGE PERIOD 
  |  DOUBLEEQUALS 
  |  SLASHEQUALS 
  |  LESS 
  
negative.code: ;
  // R706
  level2Expr : 
    (     (   level2Expr   )?   addOp   )?   addOperand
  ;
  // R468
  rightSquareBracket : 
  