anchor.diff:  tokens {
       ANNOTATION;
       ANNOTATION_LIST;
  -    DECLARE;
       MEMBER_DECL;
       TYPE_DECL;
       ABSTRACT_MEMBER_DECL;
  
positive.code:     TYPE_ARG_LIST;
      TYPE_NAME;
      TYPE_PARAMETER_LIST;
      VAR_DECL;
      WHILE_BLOCK;
      WHILE_STMT;
      SWITCH_STMT;
  
negative.code:     CLASS_BODY;
      CLASS_DECL;
      CONDITION;
      DO_BLOCK;
      DO_ITERATOR;
      EXPR;
      FINALLY_BLOCK;
  